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K4B in 6.8 SPC

Quick Overview

An AR-15 model with a 20" barrel and A2 buttstock.

Availability: Available (built to order)



Upper type: Forged A2 w/ fully adjustable rear sight
Front sight:  Elevation adjustable post w/ bayonet lug
Handguard: Fiberite rifle length
Barrel:  20”, button rifled, 4140 Chromemoly steel
Chambering: 6.8 SPC
Bore:  Long-life non-chromed bore
Twist rate: 1x10
Muzzle: A2 flash suppressor
Stock: A2 w/ trapdoor
Length/Weight:  39.5” / 8.51 lbs

Additional Information


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Olympic Arms, Inc. is not affiliated with the IOC/USOC or any other Olympic sports organization.