Action spring for AR15, M4 adjustable stocks. Made to M4A1 Mil-Spec specifications.
Purchased a decent AR pistol build kit with a terrible gas block. Wouldn’t cycle, failed to feed, weak ejection and it jammed occasionally when it did try to feed... purchased BCM Gas block, buffer (H) and buffer spring. Build runs FLAWLESSLY NOW! AWESOME PRODUCTS! Should’ve brought an entire BCM build kit from the get go...
It’s a spring. Runs in concert with H3 Carbine Buffer on 300 BLK pistol. It works. Standard issue BCM goodness. Ships fast, too. Would definitely recommend.
Nicely made seems really strong think it'll work great.
Quality product that is quiet compared to others I have used. I don’t get that weird “twang” sound I have gotten with other springs.
Does what it says. very affordable too.
This is the spring is unbelievably and exceptionally springy. It does exactly what it is designed to do. The only thing this spring could do better is make my coffee in the morning.
Rebarreled a 5.56 to a 300BLK, old +1 spring caused short strokes on subsonic ammo. Standard spring cured the problem.
It looks much better compare to other major manufactures.
What can I say it's a buffer spring and it works
