HK91 / G3 / HK51 Bolt Carrier Groups
Ensure flawless operation in your HK G3/91 series rifle. Select from original HK bolt carrier groups, US-made variants, and performance-enhanced options for smoother cycling.
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Out Of Stock
HK91, G3 7.92mm Roller - (-8)
H&K Heckler & Koch
$0.00HK 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...$0.00 -
Out Of Stock
HK91, G3 #17 Locking Piece - 36 Degree
H&K Heckler & Koch
$0.00HK German #17 Locking Piece - 36 Degree One of the best ways to slow down & tame that 21). Can also be used for HK91/G3 special projects such as suppressors, & heavier than normal loads. This is also the factory correct locking piece for all...$0.00 -
Out Of Stock
HK91, G3 F/A Bolt Group With Rhinemetall Carrier
H&K Heckler & Koch
$0.00German 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...$0.00 -
Out Of Stock
HK91, G3 Firing Pin - Titanium
HKP HK Parts
$29.95HK G3, 91 & PTR Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made 100% in the USA A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK G3, 91 & PTR weapon system. Get the...$29.95 -
Out Of Stock
HK Roller Sear For Burst Trigger Packs
H&K Heckler & Koch
$0.00H&K Roller Sear For Burst Trigger Packs New HK German Roller Sear for SEF & Navy trigger packs. This is the newer style "roller" type not the older friction type of sear. This item is also referred to as the catch with roller but more commonly...$0.00