Criterion 1-7.7 Twist Barrel, 1/2-28 Threads

Contour:
-.875 (1″ UHG, .875 Gas Block, .865 Muzzle)
-.936 (1″ UHG, .936 Gas Block, .925 Muzzle)
Bolts that are added to you order will be headspaced to your barrel. Complete Bolt

 

$350.00