HK MK23 Series

HK MK23 Series

Shop from one of the largest selections of HK MK23 parts, including Mark 23 Barrels, Triggers, and Magazines. Customize your MK23 with Magazine Extensions, Optics & Plates, and Grips for unmatched performance.

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  • HK Pistol Trigger Return Spring Tool HK Pistol Trigger Return Spring Tool

    HK Pistol Trigger Return Spring Tool

    USA

    $16.95
    HK Trigger Return Spring ToolIt is no secret that the hardest spring to install in the HK series of handguns from the USP, USPC to the modern HK45, HK45C & P30 & VP9 series is the trigger return spring. In many cases, installing the spring...
    HKP-16031
    $16.95
    Qty in Cart: 0
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    $16.95
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  • H&K HK .45 ACP Pistols Barrel O-Ring - Green H&K HK .45 ACP Pistols Barrel O-Ring - Green

    H&K HK .45 ACP Pistols Barrel O-Ring - Green

    H&K Heckler & Koch

    $4.95
    HK .45 ACP Pistols Barrel O-Ring - Green Get them while you can, as they are no longer available in green. The green o-rings were used when HK introduced o-rings on the Mark 23 and USP 45 Tactical HK pistols. All HK o-rings are...
    HKP-01984
    $4.95
    Qty in Cart: 0
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    $4.95
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  • RennSteig 8 Piece Punch Set For HK Firearms RennSteig 8 Piece Punch Set For HK Firearms

    RennSteig 8 Piece Punch Set For HK Firearms

    RennSteig

    $34.95
    Metric Parallel Pin Punch Set With Guide Sleeves - German Manufacture - 8 Piece This punch set is the exact same set used in the HK Armorer classes and approved by HK for use when installing & removing the roll pins from HK pistols & rifles...
    HKP-16737
    $34.95
    Qty in Cart: 0
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    $34.95
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  • H&K 12 Round HK Mark 23 .45 ACP Magazine - Black H&K 12 Round HK Mark 23 .45 ACP Magazine - Black

    H&K 12 Round HK Mark 23 .45 ACP Magazine - Black

    H&K Heckler & Koch

    $59.00
    HK German Mark 23 & SOCOM 12 Round .45 Cal Magazine New factory fresh German HK manufactured. The real deal steel-bodied factory fresh magazine with the upgraded maritime finish. Compatible With: HK Mark 23 SOCOM .45
    HKP-00295
    $59.00
    Qty in Cart: 0
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    $59.00
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  • On Sale
    HKP Armorers Bench Block Tool HKP Armorers Bench Block Tool

    HKP Armorers Bench Block Tool

    HKP HK Parts

    Now: $9.95
    Was: $14.95
    HK Parts Armorers Puck Punch Bench Block Tool For All HK Firearms The HK armorers' puck punch bench block tool is standard issue at all HK armorers' courses. The purpose of the tool is to aid in installing axle and roll pins in your firearm while...
    HKP-17133
    Now: $9.95
    Was: $14.95
    Qty in Cart: 0
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    Now: $9.95
    Was: $14.95
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  • HKP HK .45 Barrel O-Ring All Caliber Pistols - Red HKP HK .45 Barrel O-Ring All Caliber Pistols - Red

    HKP HK .45 Barrel O-Ring All Caliber Pistols - Red

    HKP HK Parts

    $4.95
    A rare find as we have found a small lot of HK red-colored HK .45 O-rings.  All HK o-rings are still made of the same material as the newer black o rings only in the HK red color.A great spare and a much-needed part for your HK barrel. This part is a...
    HKP-19316
    $4.95
    Qty in Cart: 0
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    $4.95
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  • HKP, H&K 17 Round HK Mark 23 / USP .45 ACP Complete Magazine - Black HKP, H&K 17 Round HK Mark 23 / USP .45 ACP Complete Magazine - Black

    HKP, H&K 17 Round HK Mark 23 / USP .45 ACP Complete Magazine - Black

    $119.95
      Magazine Extension Complete - 17 Round - HK Mark 23/USP .45 Mark 23 magazine extension +5 adds five additional rounds to the full-size HK Mark 23 12 round magazine. Each mag comes fully assembled and ready for use. HK Parts takes an existing...
    HKP-19465
    $119.95
    Qty in Cart: 0
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    $119.95
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  • HKP Armorer's Tool Kit HKP Armorer's Tool Kit

    HKP Armorer's Tool Kit

    HKP HK Parts

    $67.95
    HK Parts Armorers Puck Punch Bench Block Tool 8 Piece German Rennsteig Punch Set 20 Piece German Feeler Gauge Set
    HKP-18659
    $67.95
    Qty in Cart: 0
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    $67.95
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  • HKP HK USP45, Mark 23 +5 Magazine Extension HKP HK USP45, Mark 23 +5 Magazine Extension

    HKP HK USP45, Mark 23 +5 Magazine Extension

    HKP HK Parts

    $49.95
    Magazine Extension - +5 - HK USP45 & Mark 23 Super easy to install, simply add the mag extension to your existing mag body and follower. An easy 2 min swap. No gunsmithing needed. Made 100% in the USA out of aircraft grade hard coat anodized aluminum...
    HKP-19493-M
    $49.95
    Qty in Cart: 0
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  • H&K HK Mark 23 Thread Protector H&K HK Mark 23 Thread Protector

    H&K HK Mark 23 Thread Protector

    H&K Heckler & Koch

    $24.95
    New factory HK Mark 23 SOCOM thread protector This is the only thread protector that HK offers that will fit the HK Mark 23 Pistol. This is a hard-to-find item and a must-have for all MK23 Owners. Compatible With: All H&K Mark 23/ SOCOM barrels...
    HKP-00293
    $24.95
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  • Safariland Silicone Gun & Reel Cloth Safariland Silicone Gun & Reel Cloth

    Safariland Silicone Gun & Reel Cloth

    Safariland

    $3.95
    Silicone gun cloth for all HK firearms to preserve and protect your firearms finish. Will also work for any firearm, magazine or part. A great way to protect your collectibles.
    HKP-17630
    $3.95
    Qty in Cart: 0
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    $3.95
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  • AntiVenom-XPLC Lubricant and Cleaner AntiVenom-XPLC Lubricant and Cleaner

    AntiVenom-XPLC Lubricant and Cleaner

    Strike Industries

    $14.95
    Strike Industries introduces the industry?s most extreme general purpose weapons lubrication, cleaning, and protection solution. Strike Industries? AntiVenom-XPLC is the culmination of years of research and fine-tuning, both on the range and in the lab...
    HKP-18410
    $14.95
    Qty in Cart: 0
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  • H&K HK USP/Mark 23 Recoil Assemblies Snap Ring

    H&K HK USP/Mark 23 Recoil Assemblies Snap Ring

    H&K Heckler & Koch

    $7.95
    H&K HK USP/Mark 23 Recoil Assemblies Snap Ring The snap ring secures the spring onto the recoil buffer spring assembly. This part can come loose and become lost or easily worn. Once you remove them, HK suggests replacing them with a new snap ring...
    HKP-01258
    $7.95
    Qty in Cart: 0
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    $7.95
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  • HKP HK Mark 23 Gen 2 Rail Mount Compensator - Black HKP HK Mark 23 Gen 2 Rail Mount Compensator - Black

    HKP HK Mark 23 Gen 2 Rail Mount Compensator - Black

    HKP HK Parts

    $329.95
    The HK Parts Mark 23 Compensator is the perfect addition to your firearm. This compensator also includes a picatinny rail so you can still use your lights/lasers. The MK23 compesnator can be used with the standard length and tactical length barrels. The...
    HKP-18745
    $329.95
    Qty in Cart: 0
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    $329.95
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  • H&K 12 Round HK Mark 23 Floor Plate - Black H&K 12 Round HK Mark 23 Floor Plate - Black

    H&K 12 Round HK Mark 23 Floor Plate - Black

    H&K Heckler & Koch

    $8.95
    HK Mark 23 12 Round Magazine Floor Plate A great item to have on hand as the floor plates can become cracked and broken with use and time. Compatible With: Mark 23 12 round mags SOCOM Mark 23 12 round mags
    HKP-01196
    $8.95
    Qty in Cart: 0
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    $8.95
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  • Out Of Stock
    Promag 20 Round HK USP/Mark 23 .45 ACP Magazine - Black Promag 20 Round HK USP/Mark 23 .45 ACP Magazine - Black

    Promag 20 Round HK USP/Mark 23 .45 ACP Magazine - Black

    Promag

    $49.95
    Made in the USA by Promag. Fits all USP .45 Full Size Pistols including the USP .45 Full Size, USP 45 Tactical, USP 45 Elite & Expert. These will also fit the Mark 23 pistol if you slide off the grip extension or modify the grip extension for fitment...
    HKP-00861
    $49.95
    Qty in Cart: 0
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    $49.95
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  • H&K HK USP/Mark 23 .45 ACP Magazine Follower H&K HK USP/Mark 23 .45 ACP Magazine Follower

    H&K HK USP/Mark 23 .45 ACP Magazine Follower

    H&K Heckler & Koch

    $9.95
    USP .45 & Mark 23 SOCOM Magazine Follower A great spare to have on hand as this is a wear and replacement item.  Compatible With: HK USP 45 ACP 10 Round HK USP 45 ACP 12 Round HK USP .45 Tactical, Elite, Expert HK Mark 23 10 Round HK Mark 23 12...
    HKP-01586
    $9.95
    Qty in Cart: 0
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    $9.95
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  • HKP 17 Round HK USP 45/Mark 23 Magazine .45 ACP 17 Round - Cerakote Red HKP 17 Round HK USP 45/Mark 23 Magazine .45 ACP 17 Round - Cerakote Red

    HKP 17 Round HK USP 45/Mark 23 Magazine .45 ACP 17 Round - Cerakote Red

    HKP HK Parts

    $124.99
    HKP 17 Round HK USP 45/Mark 23 Magazine .45 ACP 17 Round - Cerakote Red Our new extended magazine is compatible with USP .45 and the mark 23 and now with a tactical red Cerakote finish. This is a must have extended magazine only available here at HK...
    HKP-20608
    $124.99
    Qty in Cart: 0
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    $124.99
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  • HKP HK Mark 23, SOCOM Bench Mat HKP HK Mark 23, SOCOM Bench Mat

    HKP HK Mark 23, SOCOM Bench Mat

    HKP HK Parts

    $13.95
    This isn't your ordinary gun cleaning mat! Show your pride for your HK Mark 23 firearm while using our high quality neoprene rubber backed and cloth topped gun cleaning mat to protect your gun bench, desk, kitchen table, or whatever surface you usually...
    HKP-17278
    $13.95
    Qty in Cart: 0
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    $13.95
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  • H&K 10 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring H&K 10 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring

    H&K 10 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring

    H&K Heckler & Koch

    $8.95
    10 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring  A must-have spare part, as magazine springs are prone to wear and tear. Compatible With: HK USP .45 10 round HK USP .45 Tactical 10 round HK Mark 23 10 round HK 9mm & 40 cal P30...
    HKP-01675
    $8.95
    Qty in Cart: 0
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    $8.95
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  • HKP H&K 17 Round HK USP45, Mark 23 .45 Complete Magazine - Red HKP H&K 17 Round HK USP45, Mark 23 .45 Complete Magazine - Red

    HKP H&K 17 Round HK USP45, Mark 23 .45 Complete Magazine - Red

    $119.95
    Mark 23/USP .45 - 17 Round Magazine Complete - Red HK Parts takes an existing 12 round mag the +5 mag extension and assembles them into a working 17 round mag. This offering is a valuable option for those that need a backup ultra capacity magazine...
    HKP-19495
    $119.95
    Qty in Cart: 0
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    $119.95
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  • AIM (.45 ACP) Laser Bore Sighter AIM (.45 ACP) Laser Bore Sighter

    AIM (.45 ACP) Laser Bore Sighter

    AIM

    $19.95
    Red Laser Bore Sight-.45 Laser bore sight system. Each unit comes complete with batteries (4)and instructions for operation. Easy to use and priced so that every shooter can have one for each caliber of firearm that they have. Works great for both...
    HKP-16217
    $19.95
    Qty in Cart: 0
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    $19.95
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  • Safariland Break Free CLP Safariland Break Free CLP

    Safariland Break Free CLP

    Safariland

    $4.95
    Break Free Cleaner, Lubricant and Preservative 1/2 OZ. Penetrates and spreads along metal surfaces into every, crack, pit and crevice to undercut contamination and lift. carbon, fouling and residue away. Long-lasting lubricating film dramatically...
    HKP-15435
    $4.95
    Qty in Cart: 0
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    $4.95
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  • HKP Pistol Rug Case - Bundesadler - Black HKP Pistol Rug Case - Bundesadler - Black

    HKP Pistol Rug Case - Bundesadler - Black

    HKP HK Parts

    $19.95
    HKP Pistol Rug - Bundesadler - Black Keep your handgun safe with the HK Parts pistol rug featuring the iconic German Bundesadler crest. This heavy duty pistol case will accommodate one pistol and up to 5 magazines.  Features: Measures 8x13" closed...
    HKP-21014
    $19.95
    Qty in Cart: 0
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    $19.95
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  • HKP HK Mark 23 Picatinny Adapter HKP HK Mark 23 Picatinny Adapter

    HKP HK Mark 23 Picatinny Adapter

    HKP HK Parts

    $99.95
    HK Mark 23 Picatinny Rail Adapter  Our new Mark 23 picatinny rail adapter mount provides attachment points for any tactical light or laser set up that attaches by way of a picatinny rail. Made from aircraft grade aluminum, hard coated anodizing and...
    HKP-21180
    $99.95
    Qty in Cart: 0
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    $99.95
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  • Out Of Stock
    BlackHawk Tactical/Socom Pistol Case BlackHawk Tactical/Socom Pistol Case

    BlackHawk Tactical/Socom Pistol Case

    BlackHawk

    $89.95
    Soft discreet gun case 10"X 13"X 2.5" Built well for a lifetime of use.Perfect for the following pistols: HK45, HK45, HK USP, Mark 23, VP9 Pistols or other HK or other various brand of pistols.BLACKHAWK, Discreet SOCOM Pistol Case, 10"X13"X2...
    HKP-12933
    $89.95
    Qty in Cart: 0
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    $89.95
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  • HKP Pistol Rug Case - Bundesadler - OD Green HKP Pistol Rug Case - Bundesadler - OD Green

    HKP Pistol Rug Case - Bundesadler - OD Green

    HKP HK Parts

    $19.95
    HKP Pistol Rug - Bundesadler - OD Green Keep your handgun safe with the HK Parts pistol rug featuring the iconic German Bundesadler crest. This heavy duty pistol case will accommodate one pistol and up to 5 magazines.  Features: Measures 8x13"...
    HKP-21015
    $19.95
    Qty in Cart: 0
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    $19.95
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  • H&K Flash Hider Retaining Ring

    H&K Flash Hider Retaining Ring

    H&K Heckler & Koch

    $1.49
    HK Flash Hider Retaining RingBrand New HK German manufactureHK flash hider, muzzle break retaining ring for use on splendid barrels. the retaining, locking ring for all HK flash hiders and comps. This item is the ring that fits inside the flash hider...
    HKP-16451
    $1.49
    Qty in Cart: 0
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    $1.49
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  • H&K HK USP/Mark 23 .45 ACP Magazine Locking Plate H&K HK USP/Mark 23 .45 ACP Magazine Locking Plate

    H&K HK USP/Mark 23 .45 ACP Magazine Locking Plate

    H&K Heckler & Koch

    $8.95
    HK Magazine Locking Plate For .45 Cal - 12 Round Magazines New HK German magazine locking plate. Compatible With: HK Mark 23 12 Round HK USP .45 12 Round
    HKP-01588
    $8.95
    Qty in Cart: 0
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    $8.95
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  • H&K Tactical Pistol Case - OD Green H&K Tactical Pistol Case - OD Green

    H&K Tactical Pistol Case - OD Green

    H&K Heckler & Koch

    $129.95
    Keep your handgun safe and secure with the HK Tactical Nylon Case. This heavy duty case will accommodate two pistols, accessories and two magazines. Includes movable, velcro-backed modular double magazine pouch, frame strap, and muzzle pocket for one...
    HKP-17154
    $129.95
    Qty in Cart: 0
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    $129.95
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  • H&K HK .45 ACP Pistol Field Cleaning Kit H&K HK .45 ACP Pistol Field Cleaning Kit

    H&K HK .45 ACP Pistol Field Cleaning Kit

    H&K Heckler & Koch

    $69.95
    H&K HK .45 ACP Pistol Field Cleaning Kit   This is a genuine HK factory cleaning kit and is recommended by HK for all HK pistol owners. Compatible With: HK45, HK45 Tactical HK45C, HK45C Tactical USP 45, USP 45 Tactical USPC 45, USPC...
    HKP-01245
    $69.95
    Qty in Cart: 0
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    $69.95
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  • H&K HK Mark 23 Ejector Roll Pin

    H&K HK Mark 23 Ejector Roll Pin

    H&K Heckler & Koch

    $6.95
    HK Mark 23 Ejector Roll Pin The Mark 23 has been discontinued, and spare parts will become limited in time, so stock up now while we have these hard-to-find parts available.
    HKP-01816
    $6.95
    Qty in Cart: 0
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    $6.95
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  • HK .45 ACP Barrel Bore Cleaning Brush

    HK .45 ACP Barrel Bore Cleaning Brush

    USA

    $1.95
    HK .45 ACP Barrel Bore Cleaning Brush This brush is a must-have item to clean the barrel effectively, and it is compatible with all standard 8-32 threaded cleaning rods (universal/most common thread). We offer a large variety of long-lasting...
    HKP-02757
    $1.95
    Qty in Cart: 0
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    $1.95
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  • On Sale
    HKP HK Mark 23 .45 Cal Compensator for Threaded Barrel - Blemished HKP HK Mark 23 .45 Cal Compensator for Threaded Barrel - Blemished

    HKP HK Mark 23 .45 Cal Compensator for Threaded Barrel - Blemished

    HKP HK Parts

    Now: $226.95
    Was: $329.95
    HKP HK Mark 23 .45 Cal Compensator for Threaded Barrel - Blemished The HK Parts Mark 23 Compensator is the perfect addition to your firearm. This compensator also includes a picatinny rail so you can still use your lights/lasers. The mark 23 compensator...
    HKP-20864-B
    Now: $226.95
    Was: $329.95
    Qty in Cart: 0
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    Now: $226.95
    Was: $329.95
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  • RCM HK Mark 23 5.87" Flush Fit Non-Threaded Barrel - Black RCM HK Mark 23 5.87" Flush Fit Non-Threaded Barrel - Black

    RCM HK Mark 23 5.87" Flush Fit Non-Threaded Barrel - Black

    RCM

    $249.95
    HK Mark 23 Non-Threaded Flush Concealed Carry &Flush Fit& Barrel - 5.38& CUSTOM MADE LIMITED NUMBER! Each barrel is finely and painstakingly made from ordnance grade steel, heat treated and finished inside and out in the ultra-desirable nitride finish...
    HKP-17622
    $249.95
    Qty in Cart: 0
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    $249.95
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  • Mil-Tec .45 ACP Pistol Bore Snake Mil-Tec .45 ACP Pistol Bore Snake

    Mil-Tec .45 ACP Pistol Bore Snake

    Mil-Tec

    $6.95
    Mil-Tec .45 ACP Pistol Bore Snake Features: Bore python is hand or machine washable Cleaning bronze brush Easy operating Portable Compatible With: All Cal 45, 11, 43-44 caliber pistols  Instructions for Use: -Place end with brass fitting down...
    HKP-19764
    $6.95
    Qty in Cart: 0
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    $6.95
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  • HKP +5 HK Mark 23 & HK USP .45 Magazine Extension - Cerakote Red HKP +5 HK Mark 23 & HK USP .45 Magazine Extension - Cerakote Red

    HKP +5 HK Mark 23 & HK USP .45 Magazine Extension - Cerakote Red

    HKP HK Parts

    $59.95
    HKP +5 HK Mark 23 & HK USP .45 Magazine Extension - Cerakote Red USP45 & Mark 23 +5 magazine extension adds five additional rounds to the 12 round factory USP45 & MK23 tactical magazine. Super easy to install simply add the mag extension to...
    HKP-20633
    $59.95
    Qty in Cart: 0
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    $59.95
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  • HKP .45 ACP 5 Prong Flash Suppressor - Threaded 16X1 HKP .45 ACP 5 Prong Flash Suppressor - Threaded 16X1

    HKP .45 ACP 5 Prong Flash Suppressor - Threaded 16X1

    HKP HK Parts

    $99.95
    HKP .45 ACP 5 Prong Flash Suppressor - Threaded 16X1 This is the much anticipated 5-prong flash hider. This flash suppressor is ideal for your USP tactical pistol. It enhances accuracy by up to 35%, reduces recoil by up to 40%, and there is no...
    HKP-02637
    $99.95
    Qty in Cart: 0
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    $99.95
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