Owner/Instructor at Semper Paratus Arms
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Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com
1. The buffer is unmarked
2. The bolt will lock open after last round
3. The gas key is mounted solid
4. Buffer spring is correct length
So......would I be better off buying a lower weight spring or buffer? Or a heavier weight spring??
For $4 I would replace the ejector spring with the copper colored Colt version.
Colt copper colored spring, no black O-ring.
At least that would eliminate that potential aspect that several of us have experienced.
That's the first, and most obvious problem. It's likely a carbine buffer, which is a good solution for NO AR15 that I'm aware of. H2 is what should be in any carbine system that's close to being correctly gassed.
A carbine buffer will give you WAY TOO MUCH bolt speed and cause lots of problems.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
What kind of ammo were you shooting? Who is the barrel manufacturer?
So far it sounds like you need a heavier buffer like an h2.
Sent from my XT1565 using Tapatalk
Windham 10.5 inch barrel. I was shooting a mix of ammo. UMC 55 grain fmj, hornady 55g, xm193, some handloads, all with the same outcome. It typically only happens when the gun gets hot or I fire at a faster rate.
Why would it begin after the fir initial 400-500 rounds? Up until then it ran like a top.
Probably the bolt carrier group is broken in, rings, etc. And now that excessive bolt speed is causing the gun to run too fast. I'm sure Windam likely has a port on the larger end. An H2 should make that thing run a TON better.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
So h2 instead of h1
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