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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H&K HK .45 ACP Pistols Barrel O-Ring - Green
H&K Heckler & Koch
$4.95HK .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 made of the same material...HKP-01984$4.95 -
HK Pistol Trigger Return Spring Tool
USA
$16.95HK Trigger Return Spring Tool - Pliers The HK Parts trigger return spring pliers were created out of necessity. If you have ever attempted this replacement procedure on an HK pistol, you will know just how tricky the execution can be. Our...HKP-16031$16.95 -
RennSteig 8 Piece Punch Set For HK Firearms
RennSteig
$34.95Metric 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 -
HKP HK .45 Barrel O-Ring All Caliber Pistols - Red
HKP HK Parts
$4.95HKP HK .45 Barrel O-Ring All Caliber Pistols - Red 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...HKP-19316$4.95 -
HKP Armorers Bench Block Tool
HKP HK Parts
Now: $9.95Was: $14.95HK 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-17133Now: $9.95Was: $14.95 -
H&K 12 Round HK Mark 23 .45 ACP Magazine
H&K Heckler & Koch
$59.00HK 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 .45HKP-00295-M$59.00 -
H&K HK Barrel O-Ring .45 ACP Caliber Pistols - Black
H&K Heckler & Koch
$4.95H&K HK Barrel O-Ring .45 ACP Caliber Pistols - Black A great spare and a much-needed part for your HK barrel. This factory part is a high-wear item, as the O-ring provides the seal between the slide and the barrel, which provides a secure lockup with...HKP-00296$4.95 -
Maglula Universal Magazine Loader
Maglula
$34.95Maglula Universal Magazine Loader The UpLULA mag loader is a military grade-quality universal pistol magazine loader and unloader designed for loading and unloading almost all 9mm Luger up to .45ACP magazines, single and double stack, and 1911's of all...HKP-14531$34.95 -
HKP, H&K 17 Round HK Mark 23 / USP .45 ACP Complete Magazine - Black
H&K / HK Parts
$119.95Magazine Extension Complete - 17 Round - HK Mark 23/USP .45 Each mag comes fully assembled and ready for use. HK Parts takes an existing German HK 12 round mag coupled with the +5 mag extension and assembles them into a complete 17 round mag. What you...HKP-19465$119.95 -
HKP HK USP45, Mark 23 +5 Magazine Extension
HKP HK Parts
$49.95Magazine 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 in the USA out of aircraft grade hard coat anodized aluminum...HKP-19493-M$49.95 -
HKP Armorer's Tool Kit
HKP HK Parts
$67.95HKP Armorer's Tool Kit Includes: HK Parts Armorers Puck Punch Bench Block Tool 8 Piece German Rennsteig punch set 20 Piece German Feeler gauge setHKP-18659$67.95 -
HKP HK Mark 23 Gen 2 Rail Mount Compensator - Black
HKP HK Parts
$329.95HKP HK Mark 23 Gen 2 Rail Mount Compensator - Black 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 compensator can be used with...HKP-18745$329.95 -
H&K HK Mark 23 Thread Protector
H&K Heckler & Koch
$40.99New 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$40.99 -
AntiVenom-XPLC Lubricant and Cleaner
Strike Industries
$14.95AntiVenom-XPLC Lubricant and Cleaner 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...HKP-18410$14.95 -
HKP Pistol Rug Case - Bundesadler
HKP HK Parts
$19.95HKP Pistol Rug - Bundesadler 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 and...HKP-21014-M$19.95 -
HKP HK Mark 23 Picatinny Rail Adapter - Gen 2
HKP HK Parts
$99.95HK Mark 23 Picatinny Rail Adapter (SOCOM) - Gen 2 The original Mark 23 rail adapter mount provides for a seamless attachment point of any tactical light, laser setup that attaches by way of a Picatinny rail. These units have been tested in the harshest...HKP-01470$99.95 -
Safariland Silicone Gun & Reel Cloth
Safariland
$3.95Safariland Silicone Gun & Reel Cloth 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 -
H&K/HKP 22 Round HK USP45/Mark 23 .45 Complete Magazine
H&K / HK Parts
$149.95Mark 23/USP .45 - 22 Round Magazine Complete HK Parts takes an existing 12 round mag the +10 mag extension and assembles them into a working 22 round magazine. This offering is a valuable option for those that need a backup ultra capacity magazine...HKP-21372-M$149.95 -
HKP HK Mark 23, SOCOM Bench Mat
HKP HK Parts
$13.95HKP HK Mark 23, SOCOM Bench Mat 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,...HKP-17278$13.95 -
HKP HK USP45/Mark 23 +10 Magazine Extension
HKP HK Parts
$69.95Magazine Extension - +10 - HK USP .45 & Mark 23 Easy to install. Simply add the mag extension to your existing mag body and follower. No gunsmithing needed. Made 100% in the USA out of aircraft-grade hard coat anodized aluminum with steel hardware...HKP-21371-M$69.95 -
HKP HK Mark 23 RMR Optic Plate
HKP HK Parts
$99.95HKP HK Mark 23 RMR Optics Plate The finest Red dot mounting solution for your HK MK23. New optic plate that replaces your rear sight to allow a Red dot optic to mount on your Mark 23 slide. A quick and easy install that can be done in the matter of...HKP-21415$99.95 -
H&K 12 Round HK Mark 23 Floor Plate - Black
H&K Heckler & Koch
$8.95HK 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 magsHKP-01196$8.95 -
H&K HK USP/Mark 23 .45 ACP Magazine Follower
H&K Heckler & Koch
$9.95USP .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 -
H&K HK USP/Mark 23 Recoil Assemblies Snap Ring
H&K Heckler & Koch
$7.95H&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 -
AIM (.45 ACP) Laser Bore Sighter
AIM
$19.95AIM (.45 ACP) Laser Bore Sighter 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...HKP-16217$19.95 -
HKP HK USP .45/Mark 23 Enhanced Magazine Extension Kit +5
HKP HK Parts
$49.95HKP HK USP .45/MK23 Enhanced Magazine Extension Kit +5 HK Parts USP .45/MK23 enhanced magazine extension. Our design represents a symbiotic balance of form and function. The added grooves enhance dexterity during those quick mag swaps while...HKP-21458-M$49.95 -
H&K 10 Round HK Mark 23/SOCOM .45 ACP Magazine - Black
H&K Heckler & Koch
$59.00HK Mark23 SOCOM 10 Round Magazine Fits all HK Mark 23 and or Socom pistols.HKP-01226$59.00 -
HKP H&K 17 Round HK USP45, Mark 23 .45 Complete Magazine - Red
$119.95Mark 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 -
HKP HK Mark 23 .45 ACP Micro Comp - Threaded 16x1 RH
HKP HK Parts
$29.95HKP HK Mark 23 .45 ACP Micro Comp - Threaded 16x1 RH The HK Parts Micro Comp & Thread Protector is a lightweight, fully functional accessory that serves as both a compensator and thread protector. It attaches easily to any factory spec 16x1 RH Mark...HKP-21319$29.95 -
Safariland Break Free CLP
Safariland
$4.95Break Free Cleaner, Lubricant and Preservative 1/2 OZ. Features: 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...HKP-15435$4.95 -
H&K 10 Round HK USP/Mark 23 .45 ACP, P30 .40 S&W Magazine Spring
H&K Heckler & Koch
$8.9510 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 -
H&K Pistol Mag 4 Slot Pouch
H&K Heckler & Koch
Now: $19.95Was: $27.95H&K Pistol Mag 4 Slot Pouch Features: HK licensed red HK embroidered logo Mil-Spec Ballistic nylon Durable construction with heavy duty velcro fold-over flap Specifications: Height: 6" Length: 8.5" Color: Black (4) Compartments to fit...HKP-19693Now: $19.95Was: $27.95 -
HKP HK Mark 23 Picatinny Adapter
HKP HK Parts
$99.95HK Mark 23 Picatinny Rail Adapter Our new Mark 23 Picatinny rail adapter mount provides attachment points for any tactical light or laser setup that attaches by way of a Picatinny rail. Made from aircraft-grade aluminum, hard-coated...HKP-21180$99.95 -
HKP 17 Round HK USP 45/Mark 23 Magazine .45 ACP 17 Round - Cerakote Red
HKP HK Parts
$124.99HKP 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 -
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HKP 17 Round HK USP .45/Mark 23 Enhanced Magazine
HKP HK Parts
$113.95HKP 17 Round HK USP .45/Mark 23 Enhanced Magazine - Black Our 17 round magazine starts life as a factory HK 12 round magazine then gets a capacity bump with our +5 mag extension. Compatible With: HK USP .45 HK Mark 23HKP-21459-M$113.95 -
HKP Pistol Rug Case
HKP HK Parts
$19.95HKP Pistol Rug Keep your handgun safe with the HK Parts pistol rug. This heavy duty pistol case will accommodate one pistol and up to 5 magazines. Features: Measures 8x13" closed and 13x17" openHKP-21010-M$19.95 -
H&K HK USP/Mark 23 .45 ACP Magazine Locking Plate
H&K Heckler & Koch
$8.95HK 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 RoundHKP-01588$8.95 -
H&K Tactical Pistol Case - OD Green
H&K Heckler & Koch
$129.95H&K Tactical Pistol Case - OD Green 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,...HKP-17154$129.95 -
H&K HK .45 ACP Pistol Field Cleaning Kit
H&K Heckler & Koch
$69.95H&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