HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK 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, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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HK33, HK53, HK93 A2 Fixed Buttstock - Surplus - Jungle Green
H&K Heckler & Koch
$122.95Surplus - Fixed Stock - Jungle Green - HK93,33,53 Hand-picked stocks in excellent condition. Comes with matching buttpad. Ready to install on your HK or clone rifle. German military surplus, but...HKP-18887$122.95 -
HK UMP Magazine - .40 S&W - 30 Round - LEO Marked
H&K Heckler & Koch
$99.9530 Round Magazine - LEO Marked - New - UMP .40 S/W This magazine will fit all HK UMP .40 Caliber UMP's as well as the USC-UMP .40 caliber conversions. New factory fresh production HK magazine. The...HKP-20664$99.95 -
Out Of Stock
HK G36C Gas Piston Rod and Spring
H&K Heckler & Koch
$89.95Heckler and Koch Complete Gas Piston Rod and Spring Assembly for HK G36C A must-have item for HK G36C conversions from G36 to SL8's or for spares for your G36CHKP-00353$89.95 -
Out Of Stock
HK MP5 2 Stage Trigger - 9mm
Timney Triggers
$389.95Timney Trigger's Trigger for your 9mm HK MP5, MP5K The Timney HK MP5 trigger is factory-set with a two pound first stage and a two pound second stage that elevates the platform so the shooter can...HKP-20507$389.95 -
HK MP5 Locking Roller -4 - .40 S&W
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, -4 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for...HKP-17561$11.95 -
Out Of Stock
HK MP5, MP5K Magazine Block Plug - 10 to 30 Round Conversion - .40 S&W, 10mm
HKP HK Parts
$9.95HKP HK Parts 10 Round Magazine Block for HK MP5 .40, 10mm MP5 10 to 30 mag block plug. This is designed to use on the HK MP5 40, 10 30 round magazine. Very easy to install and use.HKP-18170$9.95 -
HK416, MR556 Adapter - Muzzle Brake or Suppressor - 1/2x28
Surefire
$165.00Surefire (5.56/.223) Muzzle Brake/Suppressor Adapter - Threaded 1/2x28 The SureFire muzzle brake is designed for M4, M16, HK 416, and MR556 weapons with 1/2-28 muzzle threads. It significantly...HKP-17378$165.00 -
Out Of Stock
HK416, MR556, HK417, MR762, G28 Pistol Grip - PSG1 Sniper Style - RAL8000
H&K Heckler & Koch
$134.95H&K HK MR556/MR762/416/417/G28 Sniper PSG1 Style Grip - RAL 8000 HK German PSG1 style sniper factory. Each grip will fit all AR-15/M-16 lower receivers as well. Superior fit & feel to any other grip...HKP-17693$134.95 -
HK416, MR556, HK417, MR762 Buttpad - E2 Concave
H&K Heckler & Koch
$55.95Heckler and Koch German E2 Concave Butt Pad for HK416, MR556 and HK417, MR762 Can be added as an option on the HK E1 HK416 and HK417 buttstock. Providing you an option to use either the concave or...HKP-00050$55.95 -
HK G36, SL8 Recoil Spring Assembly, Complete
H&K Heckler & Koch
$69.95Recoil Rod Assembly for HK G36 & SL8 New HK factory German G36/SL8 (fits all variants of SL8/G36) recoil rod assembly complete. Great for replacement or for a spare as these have been hard to find.HKP-01057$69.95 -
HK MP7, G36, Bolt O-Ring - Firing Pin - US
USA
$5.95HK G36 & MP7 Firing Pin Bolt O-ring. This is also the O-ring for the retaining pin for the MP7- US. Compatible With: HK G36 HK MP7HKP-18373$5.95 -
On Sale
HK USP, HK45, UMP Flash Hider - .45 ACP - 5 Prong - Threaded 16x1 LH
HKP HK Parts
Now: $63.72Was: $99.95HK USP, UMP, HK45 Flash Hider - .45 ACP - 5 Prong - Threaded 16x1 LH 5 prong flash hider for .45 ACP firearms featuring a 16x1 LH threaded barrel. No timing/shims necessary. Compatible With the...HKP-02637Now: $63.72Was: $99.95