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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HK417, MR762 Bolt Carrier
H&K Heckler & Koch
$519.95H&K HK MR762 Bolt Carrier New HK German production. Compatible With: HK MR762A1, A4 HK 417HKP-16626$519.95 -
HK416, MR556 Firing Pin Catch - Titanium
HKP HK Parts
$49.95HKP HK Parts HK416 and HK MR556 Firing Pin - Titanium Made in the US from grade 6 Titanium. Get the lightest, strongest firing pin available for your HK firearm. Compatible With: HK416, MR556 HK M27HKP-17767$49.95 -
HK G36 Bolt Carrier
GSG9
$496.95HK G36 Bolt Carrier with Handle Compatible With: G36 G36K G36C Will NOT work with a HK SL8HKP-18984$496.95 -
HK23E Locking Piece #20 - 70 Degree
RCM
$49.95New US-Made #20 Locking Piece - 70 Degree For HK23E New US-manufactured RCM # 20 70-degree locking piece for HK23E and other custom builds. Made from the finest ordnance grade steel and heat treated to perfection. A perfect spare for your...HKP-02525$49.95 -
Out Of Stock
HK21 Locking Piece - 50 Degree
H&K Heckler & Koch
$149.95H&K HK21 (7.62x51/.308) Locking Piece - New Factory, Old Stock The HK21 standard 50-degree locking piece. Each LP includes the hardness "dot" to identify them as HK 21 locking pieces.HKP-01745$149.95 -
On Sale
HK91, G3, FMP Locking Piece - USED
H&K Heckler & Koch
Now: $8.93Was: $14.95Heckler and Koch Locking Piece for HK FMP HK91 and G3 - USED SOLD INDIVIDUALLY. USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German Locking Piece for FMP - USED. This is the factory...HKP-16712-USEDNow: $8.93Was: $14.95 -
On Sale
HK MP5 Locking Piece - 100 Degree - Standard Oversized - BLEMISHED - Gunsmith Special
USA
Now: $9.95Was: $33.95HK MP5 Oversized 100 Degree Standard Locking Piece - BLEMISHED - Gunsmith Special This US-made MP5 100 degree locking piece is the correct locking piece for all HK MP5-style forearms. This locking piece has also now become the factory correct locking...HKP-99116Now: $9.95Was: $33.95 -
Out Of Stock
HK11 Recoil Spring
H&K Heckler & Koch
$18.95H&K HK11 Recoil Spring This German-made HK11 recoil spring is longer than the standard G3 springs but has the same pattern. As a project spring, this part can be cut down for use on G3 and HK33-type recoil rods. Many U.S.-built HK11's use G3 springs...HKP-21858$18.95 -
HK USC, UMP Bolt Carrier - Semi Auto - 9mm - Incomplete
Michaels Machines
$499.95HK UMP 9mm - Semi-Auto Bolt Stripped The semi-auto bolt is required for HK USC to HK UMP caliber conversions. The full-auto bolt carrier will not work in HK USC rifles. Features: Tungsten filled Heat treated Parkerized & polished Marked 9X19mm just...HKP-19871$499.95 -
HK MP5, MP5K Locking Piece - 100 Degree - Extra Low Impulse - .40 S&W, 10mm
HKP HK Parts
$49.95HKP MP5/K 40/10 Locking Piece - Extra Low Impulse Marked 100 Degree For the MP5 40 or 10mm Firearms. Made out of enhanced material and heat-treated to spec. The #100 degree locking piece is an extra low impulse 40/10 locking piece. To be used with MP5...HKP-18273$49.95 -
On Sale
HK MP5, MKE AP5 Bolt Head - Stripped - GUNSMITH SPECIAL
Other
Now: $69.95Was: $149.95Turkish Contract HK MP5, MKE AP5 Stripped Bolt Head - GUNSMITH SPECIAL VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Please Note: Will require work before being functional. HKP recommends the work be performed by a professional gunsmith. The Condition will...HKP-99372Now: $69.95Was: $149.95 -
HK UMP Recoil Rod Spring
HKP HK Parts
$9.95HKP UMP Recoil Rod Spring Upgrade or replace your UMP recoil system with this high-quality recoil rod spring from HK Parts. Whether you're maintaining a factory setup or enhancing a custom build, the HKP recoil rod spring is a perfect fit for UMP-style...HKP-22089$9.95