Tag: field gauge
Smyth Busters: Can You Mix & Match Bolt-Carrier Groups?
One of the great things about the AR-15 platform is its interchangeability of parts. This includes the ease of swapping a different bolt-carrier group...
Brownells Tech Tip: AR-15 Headspace
In this Tech Tip, Brownells gun tech Steve Ostrem walks users step-by-step through the process of checking headspace on their AR-15 rifles, but new...
