K-SPEC Enhanced AR15 Bolt- 6.5 Grendel II, Dual Ejector

$89.95 $67.45
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Compatible with 6 ARC, 22 ARC, and other 6mm AR15 conversions 

Type II bolt face for increased case support

The K-SPEC dual ejector system uses mil-spec ejectors and springs that require no proprietary parts.  Ejector holes are centered on the lugs to avoid any reduction in strength of the bolt.  The dual ejector system increases the ejection reliability and adds consistency to the ejection pattern. KAK Industry has been manufacturing dual ejector bolts for the AR10/LR308 platform for over a decade and has used that experience to create a durable and reliable dual ejector system for the AR15 platform.

The K-SPEC Bolt is backwards compatible with all standard mil-spec BCG components.  The K-SPEC bolt can be used in any AR15 style direct impingement system.

  • Type II optimized bolt face
  • Bolt- 9310 steel, outside diameters ground to .0002 tolerances, Shot Peened, MPI test, nitride finish
  • Extractor- 4140 steel, fully machined, Phosphate coated
  • Extractor pin- S7 tool steel, ground, heat treated
  • Ejector- S7 tool steel, ground, heat treated
  • 1.44 oz

Machined in house and assembled using only the finest steels and components. KAK Industry takes pride in producing some of the finest Mil-Spec/ Enhanced AR15 bolts available, made 100% in house at our MO facility using Doosan machining centers, Tsugami Swiss turning, and the latest in FANUC robotics combined into an automated cell giving us lights out production capability.  In house automated CMM Inspection processes ensure consistent quality. 

6.5 Grendel, 6 ARC, 22 ARC, 6MM
Hand Preference:
Right Hand
Bolt Material:
22 ARC