Owner/Instructor at Semper Paratus Arms
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Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/
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Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com
Don't BCM BCG's come with the BCM extra power extractor spring? Or no? I was under the impression all BCM BCG's came with the extra power springs standard.
Mine did not. It only came with a "standard" spring with insert installed and the o-ring not installed, but provided in a separate bubble of the plastic bag the bcg came in. When I replaced the spring with one that came in a 3 pack from BCM, the replacement was longer and to my eye beefier than the one that came in the BCG.
“You have made us for yourself, O Lord, and our heart is restless until it rests in you.” -Augustine
+1
I had this extraction issue with a new BCM upper with new BCM BCG. I installed the BCM extractor upgrade kit (spring, insert, o-ring) in the bolt which fixed the problem. The extractor spring that came out of the new BCM bolt was about a coil shorter than the extractor spring that came with the upgrade kit.
I just pulled a couple of my bolts apart and checked the extractor springs, they look the same as the replacements BCM sells by themselves to me. Is there any definitive proof or is this conjecture al la TOS ?
"I pity thou, fools who dost not choose BCM" - King Arthur 517 A.D.
.OlllllllO.
Every bolt I've installed the BCM extractor upgrade on has functioned 100% perfectly, even with Tula and Wolf ammunition (I literally have not had a single malfunction with Tula or Wolf ammo after thousands of rounds). IMO its one of the best - if not the best - reliability upgrades there is for an AR and for only $4 it's a no brainier. Besides adding the enhanced extraction improvement it also should last a very long time since it's made out of chrome silicone. Another outstanding BCM product.
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