Comments on: What Happened to Gas Piston ARs? https://staging.shootingnewsweekly.com/rifles/what-happened-to-gas-piston-ars/ Fri, 13 Feb 2026 17:45:58 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: NitroB https://staging.shootingnewsweekly.com/rifles/what-happened-to-gas-piston-ars/comment-page-1/#comment-154551 Fri, 13 Feb 2026 17:45:58 +0000 https://www.shootingnewsweekly.com/?p=34492#comment-154551 In reply to tsbhoa.p.jr.

Being a mechanic not a plumber, I never could understand why sending hot gasses and burning particles of gun powder through a small diameter tube, to a bolt receptacle, to a bolt piston, to be exhausted as close to your face as possible, makes any sense. When all that process could be handled at the other end of the gun. I would never buy or build any AR platform that wasn’t a piston gun. The DOW’s adoption the Sig Sauer’s Spear and Spear LT are all the proof of that I need.

]]> By: tsbhoa.p.jr https://staging.shootingnewsweekly.com/rifles/what-happened-to-gas-piston-ars/comment-page-1/#comment-153974 Wed, 11 Feb 2026 16:47:27 +0000 https://www.shootingnewsweekly.com/?p=34492#comment-153974 In reply to .40 cal Booger.

i know they get the dis more accurate. i’d be happy with 3moa for my intended use.
short barrel piston subsonic.

]]> By: .40 cal Booger https://staging.shootingnewsweekly.com/rifles/what-happened-to-gas-piston-ars/comment-page-1/#comment-153777 Tue, 10 Feb 2026 22:19:02 +0000 https://www.shootingnewsweekly.com/?p=34492#comment-153777 Nothing happened to gas piston AR’s. Technically, what you call a ‘direct impingement’ AR is actually a gas piston system AR. Even the original AR-15 design listed “bolt and carrier piston system”, but it was first used on the AR-10. Gas is routed from a port in the barrel through a gas tube, directly to a chamber inside the bolt carrier. The bolt within the bolt carrier is fitted with piston rings to contain the gas. In effect, the bolt and carrier act as a gas piston and cylinder.

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