Osprey Defense piston and adjustable gas block???

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[ARCHIVED THREAD] - Osprey Defense piston and adjustable gas block???

Posted: 8/3/2016 12:16:22 AM EDT

]I’m looking for opinions; will an adjustable gas block work to tame my Osprey piston kit? My build is a 10.5” carbine 1-8 Barreled upper in 5.56, with a modified standard front site gas block (cut down and pinned). This rifle runs suppressed 90% of the time.

I have never had a problem with function; the piston kit is a beast. However, the back pressure when suppressed forces the piston to beat the hell out of my upper. I use a Seekins rail with the aluminum barrel nut. It needs replacing due to severe impact and warping ever 2500-3K rounds or so.

In the past, I used an extra power spring from JB and a H3 Spikes heavy buffer. Cycling is still faster than I want, and follow up shots take a serious grip to maintain, fair amount of recoil. Better if fired unsuppressed, but still sucks. About a year ago I switch the MVB-ARC stock, with dual recoil springs and a 5.4oz extra heavy buffer. Better, but still needs improvement. I do love the stock.

I would like to note I tried a LAW folding adapter with the heavy spring and H3 buffer, but the added buffer insert was taking serious abuse at the extensions, somehow causing bad carrier tilt marks. The ARC handles carrier tilt better than anything so far, maybe because the buffer slides into the BCG. Not sure on that one.

Osprey claims the kit needs a pinned gas block (I agree as it would rip anything else off the barrel). I was thinking the Superlative Arms front bleed adjustable gas block; it has a relief cut for a taper pin I can drill. If anyone has ran into similar issues please let me know your thoughts. My osprey kit is NiBX coated and other than it hammering my aluminum, is as reliable as it gets. Please don’t recommend I just replace it with another piston kit by a different company, I’m looking into the idea of venting gases prior to it hitting the kidney bowl, and if adding a new gas block is a possible solution.

Posted: 8/3/2016 12:59:44 PM EDT

[#1]

Might call over to the ARFCOM store, they have one or two folks there that were involved in the development of that piston design.

Posted: 8/4/2016 6:03:53 PM EDT

[#2]

backbencher- I didn't think ARFCOM had an actual store? I looked to see if they had a number listed, no luck. Could you PM me that info if you have it?

Posted: 8/5/2016 1:49:09 AM EDT

[#3]

Don't have their phone number:

http://www.ar15.com/forums/t_8_8/560477_ARFCOM_Canton_Trade_Days___September_1_4__2016.html

[ARCHIVED THREAD] - Osprey Defense piston and adjustable gas block???

AR-15 » AR Piston Systems

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