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I have an m&p sport 2 stock Ar-15 I’m going to change the hand guard out for a longer quad rail of 12.5 inches , will I need a mid length gas tube? — 2 Answers

by Matthew Tipton, from AL, United States Asked on January 30, 2019

Name ODIN Works Gas Tubes (4.7)
As Low As $14.89 Save Up to 55%
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Answered by RAMjetta, member, from VA, United States, on February 10, 2019

Changing the hand guard doesnt require you to change the gas tube. If you're using the same barrel then the same gas system is the same. If you're changing the barrel then you'll need to know which gas system length the new barrel uses. If it's different from what you currently have then purchase accordingly.

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Answered by TLA, member, from PA, United States, on May 20, 2019

The length of the gas tube will be fine but you might have to change the gas block profile depending on the type of rail. I have read that the carbine length gas tubes on the M&P Sport 2 have the gun over gassed, you might want to increase the length of your tube to soften the way your gun shoots. If it is a free float rail the low profile gas block will still be under your 12.5 rail, if you are installing a free float rail.

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