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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HK MP7, G36 Firing Pin Bolt O-Ring
H&K Heckler & Koch
$9.95HK G36 & MP7 Firing Pin - Bolt O-Ring Compatible With: HK G36 HK MP7HKP-01858$9.95 -
Out Of Stock
HK -2 Roller For Bolt Head 7.98mm - Under-sized
H&K Heckler & Koch
$19.95H&K -2 Roller For Bolt Head 7.98mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -2 roller. Please Note: The price listed is per roller. Order 2 (pair) for...HKP-00505$19.95 -
HK416, MR556 Extractor Spring Buffer
HKP HK Parts
$5.39HKP HK MR556/416 Extractor Spring Buffer This buffer fits inside the extractor spring in the extractor pocked of the bolt. This item is a high wear item and a spare would be highly advised. Compatible With: HK MR556 & HK416 FirearmsHKP-21604$5.39 -
$10.95 -
HK33, HK53, HK93 Firing Pin - Stainless Steel
HKP HK Parts
$24.95HKP HK 93/53/33 (5.56/.223) Firing Pin - Stainless Steel Specifications: Made in the USA Made from stainless steel Compatible With: HK 93/53/33HKP-17798$24.95 -
HK MP5 Locking Piece #25 - 60 Degree - High Impulse - .40 S&W, 10mm - USA
RCM
$44.95MP5 40 & MP5 10mm High Impulse Locking Piece Marked #25 Made in the US from an enhanced material and heat treated to factory specifications. Each US-made MP5 40/10 60-Degree Locking Piece is used for high-impulse ammo commonly found in...HKP-15149$44.95 -
HK33, HK93 Bolt Carrier Group - Full Auto - Used
H&K Heckler & Koch
$599.95H&K 33& 93 Full Auto Carrier Bolt Group - Used HK German manufactured for HK contract 33, 93 full auto bolt group, early style carrier with a half moon buffer. Used, but in good shape overall. Each Bolt Group Includes: HK33/93 F/A Carrier...HKP-00712$599.95 -
HK G36, SL8 Bolt Head Ejector Pin
$6.95HK G36/SL8 (5.56/.223) Bolt Head Ejector Pin HK Ejector roll pin for G36, SL8 bolt heads. This item is the pin that holds the ejector & ejector spring in place. A common wear & replacement item and a must have when doing bolt head maintenance...HKP-18372$6.95 -
HK MP5 Extractor - .40 S&W, 10mm, .357 SIG
H&K Heckler & Koch
$69.95H&K Heckler and Koch New Latest Production 1.4mm Extractor for HK MP5 .40, 10mm, .357 This is the latest and greatest upgraded extractor made by HK. This is also a great upgrade for the many out-of-spec clones out there. Compatible...HKP-00410$69.95 -
On Sale
HK MP5 Recoil Spring
MKE
Now: $7.95Was: $10.99MKE HK MP5 Recoil Spring Great replacement and spare recoil spring as this is a common repair and replacement item. Compatible With: HK MP5 Century Arms AP5 Clones & custom buildsHKP-22239Now: $7.95Was: $10.99 -
Out Of Stock
HK UMP, USC Extractor - .45 ACP
$39.95HK UMP & USC .45 Extractor Perfect for spares as they are prone to breakage and are a common wear item. Please Note: HK considers this a high wear and replacement item. Once removed from the carrier, the spring tension is compromised,...HKP-02623$39.95 -
HK91, G3 Complete Tungsten Full Auto Bolt Group
HKP HK Parts
$549.95HKP HK 91/G3 (7.62x51/.308) Complete Tungsten Full Auto Bolt Group US Made HK 91/G3 Full Auto Bolt Group Complete - NEW Each bolt group is built using HK factory prints, specs here in the US. As an added bonus each bolt group counts as two US parts for...HKP-16249$549.95