CubeWarrior
08-26-20, 09:57
Apologize for the simplistic question -- I'm more of a long range guy so this is a different animal.
My SR15 lower (Mod 2, carbine-length) with 11.5"/14.5" uppers is nearing 5K rounds. So, I figure it is time to swap the buffer spring. I'm running the KAC 21057 buffer. I shoot >90% MK 262 Mod 0/1, 77gr.--all unsuppressed (for a while longer). I'm currently ejecting brass between 2:00-3:00. The different upper BCGs are sharing wear, so I don't suspect ejector/extractor wear.
KAC doesn't build buffer springs, otherwise I'd just get one from them.
What spring would run 100% across the two uppers and keep that KAC smoothness for cycling? Searching the site seems to show favorites between Sprinco Blue, Colt M4 Carbine, and Tubbs flatwire.
Thanks
My SR15 lower (Mod 2, carbine-length) with 11.5"/14.5" uppers is nearing 5K rounds. So, I figure it is time to swap the buffer spring. I'm running the KAC 21057 buffer. I shoot >90% MK 262 Mod 0/1, 77gr.--all unsuppressed (for a while longer). I'm currently ejecting brass between 2:00-3:00. The different upper BCGs are sharing wear, so I don't suspect ejector/extractor wear.
KAC doesn't build buffer springs, otherwise I'd just get one from them.
What spring would run 100% across the two uppers and keep that KAC smoothness for cycling? Searching the site seems to show favorites between Sprinco Blue, Colt M4 Carbine, and Tubbs flatwire.
Thanks