Bolt Carrier Groups
Discover top-quality Heckler and Koch bolt carrier groups at HK Parts, including the HK MP5 bolt carrier, HK G3 bolt carrier, and HK93 bolt carrier. Explore our selection of full auto bolt carriers, enhanced bolt carriers, and tungsten-filled bolt carriers for models like the HK416, HK91, and HK MR556. Ensure reliability with factory HK bolt carriers and US-made bolt carriers. Shop now for chrome-lined bolt carriers, firing pin assemblies, and complete bolt heads to maintain 922r compliance and superior performance.
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Out Of Stock
HK MP5K, SP5K Locking Piece #28 - 80 Degree - 9mm
H&K Heckler & Koch
$199.99H&K MP5K/SP89/SP5K/SP5K PDW 9mm #28 Locking Piece This is the locking piece that is recommended when using a suppressor and 147-grain or heavier bullets. This will slow the rate of fire while suppressed to safe levels. This locking piece is 80...HKP-00918$199.99 -
Out Of Stock
HK MP5 Bolt Head - 9mm
RCM
$264.95RCM HK MP5-E 9mm Bolt Head Equipped with a heavier duty extractor and extractor spring, the RCM MP5-E bolt head is a drop-in upgrade for all MP5/MP5K's. Spend more time at the range, less time on the bench with this stout bolt head assembly. ...HKP-20954$264.95 -
HK91, G3, PTR Bolt Carrier Locking Lever
H&K Heckler & Koch
$9.95Locking Lever - HK German G3 - New Old stock No longer made or offered by HK. This is the factory HK German manufactured bolt carrier locking lever. New never installed. These are the LAST new units that HK made. There will be no more once we are sold...HKP-19485$9.95 -
HKP Roller +1 - New - 8.01mm
H&K Heckler & Koch
$8.99Roller +1 - New - 8.01mm HK Parts Standard (8.01 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...HKP-19424$8.99 -
HK Roller Type Trip Lever
H&K Heckler & Koch
$29.95H&K Roller Type Trip Lever This is a genuine German Heckler & Koch part. This is the newer style trip lever for use with a roller sear catch, not the older friction type. Please Note: May or may not be marked with the X or XX...HKP-02466$29.95 -
Bolt Head Locking Roller - -4, 7.96mm - Under-sized
H&K Heckler & Koch
$27.99Heckler and Koch -4 7.96mm Undersized Roller for Bolt Heads The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -4 roller, each roller is priced per roller. Compatible...HKP-00504$27.99 -
HK MP5K, SP89, SP5K Recoil Rod Assembly - USA
DTAC Dakota Tactical
$34.95HKP MP5K, SP89, & SP5K Recoil Rod Assembly - USA The new US-made Dakota Tactical recoil rod assembly is completely micro-polished and built of the finest materials. This is a great item to have on hand as a spare part as this is a wear and...HKP-02169$34.95 -
HK MP5, HK90 Series Roller Locking Plate - Original Style
H&K Heckler & Koch
$43.95New HK German Roller Retainer Plate for Rollers Original-style roller locking plate. This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with use. Compatible With: MP5*** MP5K SP89,...HKP-00065$43.95 -
HK53 Factory Recoil Spring
H&K Heckler & Koch
$14.95HK German HK53 Replacement Recoil Spring This rare spring is a must-have spare for your HK53 firearm.HKP-02228$14.95 -
HK Standard Roller 8.00mm - Used
H&K Heckler & Koch
$7.958.00mm Standard Size (zero or unmarked) For HK Roller Lock Bolt Head HK spec unmarked 8.00mm roller that will fit all HK bolt heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme & Cetme clones. The best roller on the market...HKP-19374$7.95 -
HK MP5, MP5F Recoil Rod Guide Ring - Enhanced
HKP HK Parts
$3.95HKP MP5F & MP5 40,10 Recoil Rod Guide Ring For Recoil Rod Assemblies - Enhanced New Enhanced material for greater longevity and durability Our US made recoil rod guides are the made from the strongest most durable material available much better than...HKP-17835$3.95 -
HK SP5K Bolt Carrier - Full Auto
RCM
$189.95HK SP5K Specification Full Auto Bolt Carrier - US Made Machined completely from billet ordnance grade steel. The HK SP5K carrier is made to the most updated and latest MP5K F specs that will fit the SP5K. Tungsten filled, heat treated, & factory...HKP-17932$189.95