MP5K / SP5K Bolt Carrier Groups

RCM HK MP5 & MP5K 40/10 SD 120 Degree Locking Piece Compatible With:  MP5, MP5K  MP5SD 

HKP MP5K 40/10 Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and is Tungsten filled, and heat treated providing the finest American made carrier available. Not to be confused with cheap...

RCM HK MP5 & MP5K 40/10 SD 115 Degree Locking Piece Compatible With:  MP5/K 10  MP5/K 40 

MP5K 40/10 Full Auto Bolt Carrier - Latest Upgraded Version This part is built from billet ordnance steel. This US-made MP5K 40,10 style carrier is made with Tungsten and is heat-treated, providing the finest American-made carrier...

HKP HK Parts -4 7.96mm Undersized Roller HK spec under-sized roller that will fit all HK bolt heads including HK91, G3, HK33, HK53, HK93, HK94, MP5, SP89 all clones and the Cetme and its clones. An easy way to remember the size you need to order: Plus...

MKE HK MP5K 9mm Recoil Guide Rod Incomplete recoil spring guide rod. Compatible With: MP5K MKE AP5-P

H&K MP5, MP5K Bolt Head Complete - Action 3 New and the latest manufacturer, just got a few in. They are rare and hard to find as they are now considered "restricted items" by HK. Each is a current HK produced bolt head complete. Perfect for the 9mm...