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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HK UMP Hammer Spring - Left
USA
$9.95USA HK UMP Left Hammer Spring New U.S hammer spring- left side A high wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm. Compatible With: HK UMP models 45, .40 & 9mm USC .45 and other...HKP-20840$9.95 -
HK MP5K, SP89 Flat Receiver - 9mm
HKP HK Parts
$199.95MP5K, SP89 Receiver Flat - 9mm New MP5K receiver flat made by the original German tool and die maker of the LSC receiver flat utilizing factory original German prints and specifications. The creator of our receiver flat has been regarded as the premier...HKP-20733$199.95 -
HK MP5, HK91, G3, HK93, HK94 2-Stage Trigger
Timney Triggers
$298.95Timney Trigger for MP-5, HK 91/93/94, G3, Clones The Timney HK MP5 trigger is factory-set with a two pound first stage and a two pound second stage pull weight. All trigger parts have been expertly designed and precision machined from premium materials...HKP-20500$298.95 -
HK MP5 Stock - Folding - HK Parts Adapter
HKP HK Parts / Heckler & Koch
$269.95German Folding Stock with HK Parts Adapter - MP5 German folding stock with MP5 HK Parts Adapter. The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum. Compatible With: MP5 (NOT compatible with MP5 .22...HKP-19453$269.95 -
HK45, HK UMP Flash Hider - 4 Prong - Threaded 16x1 RH
HKP HK Parts
$79.95HK Parts .45 ACP 4 Prong Flash Hider - Threaded 16x1 RH Crafted from solid titanium, this tactical thread protector fits all HK45 full-size and compact barrels threaded 16x1 LH. Essential for safeguarding your threaded barrels and exposed threads, it...HKP-01018$79.95 -
HK MP7, G36 Picatinny Rail
H&K Heckler & Koch
$59.95H&K HK MP7/G36 Picatinny Rail New HK German 7 Slot Aluminum Picatinny Rail with hardware for HK MP7 and G36. Specifications: MP7 - Side Rail G36 - Bottom Rail Overall Length: 3.75"HKP-18856$59.95 -
HK G36, G36K Gas Block
H&K Heckler & Koch
$99.95HK G36E, G36K - Gas Block - German HK The real deal. HK German G36E, G36K Factory Gas Block. New uninstalled. Compatible With: SL8 Other G36 variants and custom builds and projectsHKP-16351$99.95 -
HK UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Safety Right Side (0,1)
H&K Heckler & Koch
$9.95Safe, Semi 0,1 Only HK UMP, USC, G36, & SL8 Right Side Safety Control Lever Constructed from durable black polymer, this factory original part from HK is made in Germany and specifically designed for H&K SL8, G36, and USC rifle. The lever...HKP-01874$9.95 -
HKP HK MP5 (.40 S&W) Locking Roller -6
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, -6 The proper roller size is essential for headspacing the bolt gap correctly. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you...HKP-17566$11.95 -
HK53 Barrel - 5.56 / .223 - 8.275" - Threaded 15x1
RCM
$164.95RCM HK 53 (5.56/.223) Barrel - Threaded 15x1 These are the finest US-made barrels available and come highly recommended by HKPARTS. Machined 100% in the USA, 922r compliant, and counts as 1 US-made 922r compliant part. Specifications: Cold Hammer Forged...HKP-01156$164.95 -
HK MP5K, SP89, SP5K Cocking Tube Support - 9mm - Complete
H&K Heckler & Koch
$123.99HK German MP5K, SP89, & SP5K Cocking Tube Support Complete - New Each support is complete with a detent and spring installed. These can also be used to replace the plastic or cheaply made steel or aluminum clone parts found in many clones and builds...HKP-00399$123.99 -
SB Tactical SBM4 Pistol Stabilizing Brace
SB Tactical
$74.99SB Tactical SBM4 Pistol Stabilizing Brace The SBM4 is the evolution of the original SB15 Pistol Stabilizing Brace . . . thinner, lighter and with enhanced cheek weld ergonomics. Includes: Pistol stabilizing brace Adjustable nylon stabilizing...HKP-17903$74.99