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» A Well Regulated Militia » Weaponry » Gunsmithing » what parts interchange between mid length and carbine length gas systems on an AR15?

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Author Topic: what parts interchange between mid length and carbine length gas systems on an AR15?
JWF
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Member # 31629

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Im kind of anal about spare parts and ive got only carbines right now but im thinking about getting a mid length set up ...what parts are not universal between the two systems? barrels and gas tubes are not but what about bolts, bcgs and buffers?

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N/A

Posts: 28 | From: Oregon | Registered: May 2017  | Report this post to a Moderator
Flight-ER-Doc
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Bolts and BCG's are, buffers are not.

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Emergency Medicine - saving the world from themselves, one at a time.

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Posts: 1903 | From: Slipping the surly bonds of earth | Registered: Dec 2004  | Report this post to a Moderator
Archangel1
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I have had no reliability issues using standard mil spec carbine buffers and springs with a mid-length barrel system. No fancy buffers, springs or adjustable gas blocks needed either. Rifle buffers and springs should be different.

I used an Adams rifle gas-length piston upper with a carbine lower without issues as well. Not sure about the piston upper. Shoots really soft but accurate enough. Figured it might work for a small women or teenager who are learning to shoot something more than a 22. No major issues with reliability, although I never put enough rounds down range at one time to determine MTBF.

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"Power tends to corrupt and absolute power corrupts absolutely. Great men are almost always Bad Men." Lord Actin 1887

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Posts: 714 | From: West | Registered: Feb 2012  | Report this post to a Moderator
   

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