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by kfouts2
03 Jan 2017, 12:46
Forum: Rifles
Topic: PS90 Headspace
Replies: 1
Views: 336

PS90 Headspace

Can anyone help me check the headspace on my P90 clone? I received a 10.5 inch CMMG and my Form 1 for SBR has been approved. I took it to the range and it is not cycling. The shoulders on the rounds are blown out. I think I have a headspace issue but do not know how to adjust or measure for it. Than...