14.5 T91 Upper.. Buffer/Spring combo?
Moderators: e292644, blueeyedwolf
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- II
- Posts: 6
- Joined: Sun Feb 23, 2020 9:29 pm
- Country: USA
- Location: FL
I have a 14.5 clone upper and was wondering what the proper buffer/spring combo is. I have on hand a PSA carbine buffer/spring combo, a BCM carbine/H1 combo, and a Sprinco Blue Spring/ BCM H2 combo. What combo is best?