Rifle / SMG Parts
Elevate Your H&K Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your H&K rifle with top-notch parts and accessories. From MP5 and MP5K to SP5 and UMP/USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, SP5K, G36, or MP5 22, we have the H&K rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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H&K SP5K Spec Only 9mm 2 Position (0,1 Pictogram) FBI Style Grip Trigger Housing
H&K Heckler & Koch
$194.95H&K SP5K Spec Only 9mm 2 Position (0,1 Pictogram) FBI Style Grip Trigger Housing Upgrade your HK SP5K with this authentic German FBI style grip housing, designed specifically for the SP5K model. Compatible with all HK German ambidextrous trigger...HKP-18307$194.95 -
H&K UMP (.40 S&W) Barrel - Used
H&K Heckler & Koch
$499.95HK German Used Factory UMP .40 S&W Barrel These are police department trade-in barrels in good shape and perfectly usable.HKP-00600$499.95 -
H&K USC/SL8 (.45 ACP/5.56/.223) Hammer
H&K Heckler & Koch
$94.95H&K USC/SL8 (.45 ACP/5.56/.223) HammerHKP-16352$94.95 -
Out Of Stock
HK Ambidextrous Sling - Green - USED
H&K Heckler & Koch
$89.95HK Ambidextrous Sling - Green - USED This sling is the factory (used) HK Green 1.25" Ambi Sling with dual HK sling hooks for use on either the left or right side of the weapon. Best used with the ambi sling pins as the option shown below. Can be used on...HKP-00183$89.95 -
Out Of Stock
HK UMP (9mm) Extractor
USA
$39.95New US-Made USC & UMP 9mm Extractor: This is the perfect spare part for your UMP or USC 9mm conversion. Please Note: HK considers this a high wear and replacement item. Once it's removed from the carrier, the spring tension...HKP-02625$39.95 -
HKP Extended Harris Bipod Adapter - Picatinny
HKP HK Parts
$19.95HKP Extended Harris Bipod Adapter Universal Picatinny rail Harris bipod adapterHKP-15374$19.95 -
HKP HK 416 .22 LR Flash Hider - Birdcage Style
HKP HK Parts
$39.95HKP HK 416 .22 LR Flash Hider - A5 Birdcage Style Upgrade your 416 .22 pistol with a direct mount on flash hider featuring a sleek A5 birdcage style for a truly custom look. Built to last with the highest quality and nitride finish. Compatible With: HK...HKP-21577$39.95 -
Out Of StockOn Sale
HKP HK MP5 .22LR Brace Adapter - BLEMISHED
HKP HK Parts
Now: $72.95Was: $99.95HKP HK MP5 .22LR Brace Adapter - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Expertly crafted from a solid billet of CNC machined aircraft grade...HKP-21543-BNow: $72.95Was: $99.95 -
HKP HK MP5, 93, 33 Brace Adapter w/ QD - Red
HKP HK Parts
$124.99HK MP5, HK93 Style AR, M4 Stock & Brace Adapter With QD Sling Attachment Point - Red Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum with QD Sling Attachment Points. Properly buffered with...HKP-19786$124.99 -
HKP HK MP5K Tactical Tri-Rail - Red
HKP HK Parts
$89.95Tactical Tri-Rail - Red Our new modular tactical forearm comes with 3 rails on the left, right and bottom. That are removable and adjustable for you own taste and mission requirements. Each modular handguard will fit all MP5K, SP89 and other K...HKP-19511$89.95 -
Out Of Stock
HKP HK MR556/416 Rear Sight Drum 10" Barrel Length
HKP HK Parts
$29.95HKP HK MR556/416 Rear Sight Drum 10" Barrel Length Made in the USA.HKP-17774$29.95 -
HKP HK USC, HK UMP Cocking Handle Assembly
HKP HK Parts
$149.95HKP HK USC, HK UMP Cocking Handle Assembly Includes: Steel cocking handle Support spring Cocking lever support Set screwHKP-19155$149.95 -
HKP MP5 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger
$2,199.95MP5 9mm Pistol Build Kit Complete German & USA Made Parts- SEF Binary Trigger Group MP5 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a...HKP-20523$2,199.95 -
HKP V51 Backplate
HKP HK Parts
$167.95HKP V51 Backplate HK Parts brings you a long lost part that was no longer available till now. The Vector Arms V51 firearms was one of the most aclaimed PDW of its time but replacement parts have become difficult to source. We now take like new G3...HKP-21201$167.95 -
Out Of Stock
JMAC HK MP5 .40/10 360-28FD Facemount Keymount (KeyMicro) - Threaded 1/2x28
JMAC Customs
$99.50JMAC HK MP5 .40/10 360-28FD Facemount Keymount (KeyMicro) - Threaded 1/2x28 The JMAC Customs RRD-360 Muzzle Device offers advanced 360-degree gas venting, reducing recoil and improving control. Its innovative design eliminates the need for timing,...HKP-21238$99.50 -
Lee Sporting, Magpul HK MP5K Complete Trigger Group Flat Trigger
Lee Sporting, Magpul
$549.95Lee Sporting, Magpul HK MP5K Complete Trigger Group Flat Trigger Upgrade your firearm with this ergonomic replacement for the OEM grip. This trigger group is 4.3 oz lighter than the OEM version, featuring a housing made from MJF PA11 Nylon for enhanced...HKP-20484$549.95 -
On Sale
Magpul AR-15 CTR 6 Position Stock - Mil-Spec
Magpul
Now: $54.95Was: $79.95Magpul AR-15 CTR 6 Position Stock The Magpul CTR (Compact/Type Restricted) Mil-Spec Model is a drop-in replacement buttstock for AR15/M16 carbines using mil-spec-sized receiver extension tubes. The extra-power lock mechanism uses a premium...HKP-01031Now: $54.95Was: $79.95 -
Out Of Stock
MM HK PSG1/MSG90/91/G3 (7.62x51/.308) T-Rail Reinforcement Set For Receiver
Michaels Machines
$299.95HK Receiver Reinforcement T-Rail Set For Left and Right Sides T-rails are used to strengthen HK receivers or for custom builds. These are the finest T-rails available on the market. Made from enhanced steel and perfect for that custom HK project...HKP-00236$299.95 -
On Sale
Navy Style - SEF - Match Trigger Group - HK SP5
H&K Heckler & Koch
Now: $599.95Was: $679.95Navy Style - SEF - Match Trigger Group - HK SP5 Ready to drop in your SP5 spec 9mm receiver. Great replacement for the 2 position trigger group. With the match trigger pack installed, the trigger slack take up is eliminated and travel is reduced. The...HKP-20665Now: $599.95Was: $679.95 -
Out Of Stock
PTR HK 91/G3 (7.62x51/.308) Slimline Forearm
PTR
$39.95New Slim Line HK91, G3, PTR Forearm- US Each forearm is a new US made offering made on the original HK tooling acquired by PTR91. Black in color, no internal heat shield. This hand guard also counts as 1 desirable US compliant part for your HK 91, G3...HKP-16251$39.95 -
PTR HK 93/33 (5.56/.223) Barrel - Threaded 15x1 RH
PTR
$163.95PTR HK 93/33 (5.56/.223) Barrel - Threaded 15x1 RH New US made Barrel by PTR for the HK93,33 style of firearms. Specifications: Made In The USA 922r Compliant Counts as 1 US Made Part Overall length 16.1" 4140 Ordnance Grade Steel Threaded 15x1 RH 1:9...HKP-16458$163.95 -
RCM HK 33/93 (5.56/.223) Barrel - Threaded 15x1
RCM
$234.95RCM HK 33/93 (5.56/.223) Barrel - Threaded 15x1 New Cold Hammer Forged Steel HK33/93 16.1" barrel, nitrided and US-manufactured. These barrels are among the finest available and come highly recommended by HKParts. Specifications: Made In The...HKP-01052$234.95 -
Out Of Stock
RCM HK MP5 / 416 .22LR Pistol Barrel
RCM
$229.95RCM HK MP5 / 416 .22LR Pistol Barrel This is the first and only offering of a replacement barrel for the HK .22LR platforms. Replacing the barrel previously required sending the receiver to H&K and having the assembly returned to an FFL. ...HKP-21403$229.95 -
RCM HK33K (5.56/.223) Barrel - Threaded 15x1
RCM
$234.95RCM HK33K (5.56/.223) Barrel - Threaded 15x1 Enhance your HK33K with the RCM 12.7" barrel, crafted from cold hammer-forged steel. The nitride finish provides exceptional corrosion and wear resistance, and the fully fluted chamber meets stringent HK...HKP-02319$234.95 -
RCM MP5 40/10 Extractor
RCM
$34.95MP5 40 & 10mm Extractor - US Made This part is made to the exact same specs as the HK German extractor final polish included. It is also a great upgrade for the clone CA and Vector builds.HKP-01969$34.95 -
Strike Industries HK MP5 Drop-In MOD2 Stock
Strike Industries
$199.95Strike Industries HK MP5 Drop-In MOD2 Stock We pair our MP5 AR Stock adapter with this Strike MOD2 stock to give you a drop-in MP5 stock. Give your build a modern look and added comfort and adjustability of the MOD2 stock. Only available here at HK...HKP-21331-M$199.95 -
Surefire Procomp AR Rifles (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 RH
Surefire
$95.00Surefire Procomp AR Rifles (7.62x51/.308) Muzzle Brake - Threaded 5/8x24 RH The SureFire PROCOMP muzzle brake is designed for AR10/LR308 rifles and variants with 5/8x24 muzzle threads. It significantly reduces recoil impulse and features neutral porting...HKP-19486$95.00 -
TBR HK MR762 Operator Brass Catcher - FDE
TBR Tactical Brass Recovery
$229.95TBR HK MR762 Operator Brass Catcher - FDE Operator model for HK MR762 rifle. Slightly different from other AR platform rifles because the HK MR762 has a bit higher rail to bore centerline dimension. This 4 position detent feature allows 180 degrees of...HKP-19150$229.95 -
Timney Triggers HK MP5 .40/10 2-Stage Trigger Group Complete
Timney Triggers
$639.95Timney Trigger group for MP5 .40 SEF Timney trigger group comes completely assembled and ready to drop in to your receiver. Set up with a German ejector lever, new SEF selector lever and a brand new factory German housing for the best trigger group...HKP-20514$639.95 -
On Sale
TPM Fluted Bolt Knob – Bronze
Tactical Precision MFG
Now: $28.50Was: $37.99TPM Fluted Bolt Knob – Bronze These bolt knobs can dress up any rifle with a 5/16×24 threaded bolt handle. Specifications: Dimensions:1.5″ x 7/8″ x 7/8″ Weight: 2 oz. Threading: 5/16x24HKP-20906Now: $28.50Was: $37.99 -
VFC, Umarex HK 416 .22LR 9" Keymod Rail - RAL 8000
VFC/Umarex
$124.95VFC CALIBUR KEYMOD 9" RAIL - TAN The VFC Handguard is an ultra-lightweight Key-Mod rail for the HK416 .22 model. Specifications: Lightweight and modular 6 mm rail Tan 9 inchHKP-19304$124.95 -
Viridian AR M-LOK Hand Stop Laser - Green
Viridian
$178.95Viridian AR M-LOK Hand Stop Laser - Green Viridian, the leader in weapon-mounted technology, is responsible for a number of firearm innovations - including green and red laser sights. Viridian's new HS1 is the world's first AR hand stop with an...HKP-19464$178.95 -
Wasatch Arms Keymount Muzzle Brake - Threaded 5/8x24
Wasatch Arms
$89.95Wasatch Arms Keymount Muzzle Brake - Threaded 5/8x24 The Wasatch Arms keymount brake is compatible with the Dead Air keymount system. The brake has no outisde flats, so there is no need for timing shims or crush washers...HKP-20298$89.95 -
Aimpoint Absolute Co-Witness T1 Quick Release Mount
AIM
$49.95AimSports - T1 Quick Release Mount - Absolute Co-Witness Features a machined recoil lug and steel hardware to prevent wear between mounting surfaces. Utilizing a quick release base, the generously sized lever is textured for easy operation under any...HKP-19336$49.95 -
B&T BT APC, BT GL06 Foldable/Length Adjustable Stock - Black
B&T Brugger & Thomet
$344.95B&T BT APC, BT GL06 Foldable/Length Adjustable Stock - Black Swiss made B&T folding & 3 position adjustable stock for the APC and GL06. This is a military grade stock as supplied by B&T to military and law enforcement units worldwide...HKP-18352$344.95 -
B&T BT APC9, BT APC45 Quick Detach Brass Catcher - Black
B&T Brugger & Thomet
$164.95B&T BT APC9, BT APC45 Quick Detach Brass Catcher - Black Swiss made B&T brass catcher for B&T APC9 and APC45 firearms. Quickly and easily attaches/detaches to the right-side picatinny rail section. Made to collect the fired brass. B&T AG...HKP-18106$164.95 -
B&T HK416, HK MR223 M-LOK Handguard for (11") with Overgrip - Coyote Tan
B&T Brugger & Thomet
$279.95B&T M-LOK Handguard OG for HK416/MR223 (11") with "Overgrip" Free-Cut on the Top Rail B&T's one-piece 11" M-LOK handguard for the Heckler & Koch HK416 and MR223 rifles is a solid upgrade for these HK rifles. The handguard is an easy to...HKP-20401$279.95 -
B&T Unigrip Fixed With Storage Compartment - FDE
B&T Brugger & Thomet
$69.95B&T Vertical Grip - Fixed Style With Storage Compartment - TAN Swiss made B&T vertical for-end grip for picatinny. Made of tan polymer and includes a water tight storage compartment in the bottom of the grip. Will fit all mil-spec picatinny rails...HKP-18042$69.95 -
On Sale
Blade-Tech HK 416 Magazine RH Pouch - Black
Blade-Tech
Now: $29.95Was: $44.95HK 416 Magazine Pouch - Right Hand Positive magazine retention without cumbersome flaps. Fully adjustable with tension screws. For a right-hand shooter. Features: Custom-modeled Kydex construction Fully adjustable with Tek-Lok locking mechanism Color:...HKP-15157Now: $29.95Was: $44.95 -
CFG Low Profile Rear Sight Base Mount - 10 Slot
CFG
$119.95CFG Low Profile Rear Sight Base Mount - 10 Slot This new offering is a neat low profile offering that allows the user to replace the rear sight and add an extremely low profile super robust picatinny optic mount to your HK MP5, MP5K firearm. Made in the...HKP-18236$119.95