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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On Sale
HK UMP Bolt Carrier - Semi-Auto - Complete - .45 S&W
OMEGA
Now: $224.95Was: $359.95Omega HK UMP .45 Bolt Carrier Complete - Semi Auto Replacement part for USC to UMP conversions. Marked .45 semi auto just like the OEM carrier. Compatible With: HK UMP .45 Includes: Extractor Firing Pin Firing Pin Spring Firing Pin Retaining Pin The...HKP-21316Now: $224.95Was: $359.95 -
$24.95 -
HK G36, SL8 Rod Spring - Gas Piston
H&K Heckler & Koch
$9.99HK G36 & SL8 Piston Rod Spring A must-have spare repair and replacement part. New HK German factory part. Compatible With: HK G36 HK SL8HKP-01863$9.99 -
HK UMP Conversion Kit - .40 S&W - Used
H&K Heckler & Koch
$1,087.95HK UMP .40 S&W Caliber Conversion Kit - Used Complete conversion kit designed to convert HK UMP and compatible .45 caliber sub-gun platforms to .40 S&W. This kit includes factory German HK components and installs as a drop-in conversion. Machined...HKP-00729$1,087.95 -
On Sale
HK UMP Bolt Group - .40 S&W - Used
H&K Heckler & Koch
Now: $477.95Was: $649.95German UMP .40 factory F/A Bolt Group - Complete This item is used in very good shape.HKP-00601Now: $477.95Was: $649.95 -
HK PSG1, MSG90 Ejector Lever
H&K Heckler & Koch
$79.95Heckler and Koch Ejector Lever for HK PSG1, MSG90 German-made ejector lever for PSG1 and MSG90 platforms. Direct replacement part built to original factory-spec for reliable extraction and correct bolt head function. Compatible With: PSG1, MSG90HKP-00537$79.95 -
HK MP5SD 110 Degree Locking Piece
HKP HK Parts
$49.95MP5 40 & MP5 10mm SD 110 Degree Locking Piece - USA Made in the USA from an enhanced material and heat treated to factory specifications. Each US made MP5 40/10 SD 110 degree locking price is designed for use with the MP5 40/10 SD variants...HKP-18274$49.95 -
HK MP5 Bolt Carrier - Full Auto - 10mm / .40 S&W - USA
HKP HK Parts
$149.95HKP MP5 40/10 Full Auto Bolt Carrier Machined completely from billet ordnance steel and black oxide finished. This carrier is made to the latest specs, tungsten filled, and heat treated. Made in the USA and available exclusively at HK Parts...HKP-18363$149.95 -
HK MP5K Bolt Group - Complete - Full Auto - 9mm
H&K Heckler & Koch
$2,974.95MP5K Full Auto Bolt Group "F" Style Complete - German Each factory HK MP5K bolt group includes the following: MP5K F/A - F style bolt carrier F style bolt head 100 degree locking piece firing pin firing pin spring recoil rod assembly Extremely rare...HKP-00384$2,974.95 -
On Sale
FMP Locking Piece - USED
H&K Heckler & Koch
Now: $8.93Was: $14.95FMP Locking Piece - 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 correct for FMP firearms. Used pulled from...HKP-16712-USEDNow: $8.93Was: $14.95 -
HK MP5, AP5 Recoil Rod
MKE
$64.95MKE HK MP5, AP5 Steel Recoil Rod Turkish-made steel recoil rod for MP5-style firearms. OEM-quality part that replaces worn or bent recoil rods and is designed to help restore smooth cycling and proper bolt movement on 9mm MP5 and AP5 roller-delayed...HKP-99343$64.95 -
On Sale
HK21 Bolt Carrier - Stripped - Incomplete
FMP HK CONTRACT
Now: $387.95Was: $499.95FMP HK 21 Stripped Bolt Carrier New old stock stripped HK21 FMP Full auto bolt carrier. Missing the catch lever assembly (see pictures). May have storage marks or light rust on the unfinished bottom portion. Long since out of production and no longer...HKP-20034Now: $387.95Was: $499.95