HK91 / G3 / HK51 Bolt Carrier Groups

German  G3, 91 F/A Bolt Group CompleteEach Bolt group includes the following factory HK parts: Complete Bolt Head Assembled (extractor, extractor spring, roller retainer plate and rollers) >Firing pin >Firing pin spring >HK91/G3 locking piece...

US Made PTR 32 Bolt Group Complete Semi-Auto. Factory correct bolt head and locking piece for use in the PTR 32 chambered in 7.62X39. Brand new May 2015 manufacture. This is the correct bolt for all PTR 32 rifles with 12"and 16" barrels.

HK German Factory -8 Roller 7.92mm in size New HK German negative 8 (7.92mm) that is used for proper head spacing. Hard to find a factory HK roller in this size. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt...

Heckler and Koch German #17 Locking Piece - 36 Degree One of the best ways to slow down and tame that HK21). Can also be used for HK91/G3 special projects such as suppressors, & heavier than normal loads. This is also the factory correct locking...

HK German G3 .22 Caliber Conversion Extractor  These are no longer in production and are hard to find. In many cases, the .22 conversion kits out there have old or worn-out extractors.  Compatible With All Of The Factory HK .22 Kits: G3,...

German Rhinemetall G3, 91 F/A Bolt Group Complete Each Bolt group includes the following factory HK parts: Complete Bolt Head Assembled (extractor, extractor spring, roller retainer plate and rollers) >Firing pin >Firing pin spring >HK91/G3...