Are bolts from a piston AR interchangeable with gas AR bolts????
Just got my new RRA upper and the bolt face around the firing pin has like a very small amount of countersink which showes up on the primer as a small crater . I have 30 rds down the tube with no problems so far.
Would the head space be OK?
Is there any problems with doing a switch???
DAB
PS. I took both bolts and Miked them and they are with in 0.0015" ( one and one half thousands ) or better of being the same. So I swapped them and a perfect fit.
Just got my new RRA upper and the bolt face around the firing pin has like a very small amount of countersink which showes up on the primer as a small crater . I have 30 rds down the tube with no problems so far.
Would the head space be OK?
Is there any problems with doing a switch???
DAB
PS. I took both bolts and Miked them and they are with in 0.0015" ( one and one half thousands ) or better of being the same. So I swapped them and a perfect fit.
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