Q&A for Riflespeed Gas Control .750in Assembly Block

Q

Erik, member, from NH, United States, asked on March 14, 2025

how do I choose the gas system length for the assembly?

A

Answered by Taylor Francois, member, from OR, United States, on July 16, 2025

Find out if your barrel is carbine, rifle, pistol length etc. they don’t come with gas tubes so you have to buy it separately. And it is a straight tube. However the question is how long your hand guard is, and from your gas block journal. My sig was a carbine length, and a 13.5 inch hand guard. I ordered the 4.3 inch one and still couldn’t easily adjust the gas system. So I ended up getting a 13 inch hand guard. Hope this helps.

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Q

DAVID Stutes, guest, from LA, United States, asked on October 13, 2024

If using a 10.5” barrel with pistol gas system what length should I need to clear break.

A

Answered by Taylor Francois, member, from OR, United States, on July 16, 2025

Find out how long your hand guard is. And how far back your gas block journal is. Unless you have a cut out hand guard to adjust gas the gas block

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Q

Baxter, member, from GA, United States, asked on February 23, 2025

With this fit a faxxon big gunner barrel. .750 gas but the front of the barrel thins out?

A

Answered by Taylor Francois, member, from OR, United States, on July 16, 2025

Yes, if the gas block and barrel journal size is .750. The tapper on the front will be an easy install.

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Q

HipChief Tran, member, from FL, United States, asked on February 27, 2026

I have a 11.5 barrel on my ar15 build. What gas tube length do I need to purchase for this gas block?

A

Answered by Cameron M, member, from SC, United States, on July 02, 2026

Depends on your gas length and handguard length. The website has a tool to help figure this out. My 11.5 barrel with a 10.5 handguard was compatible with the RS7534 3.4 inch version

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Q

Danny Tran, guest, from OR, United States, asked on July 19, 2025

Will this gas block work with a V Seven Inconel gas tube?

A

Answered by Gunguy, member, from RI, United States, on August 16, 2025

No those gas tubes have a bend in them same as milspec . These gas tubes are the straight gas tubes so that wouldnt work ,

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Q

D, member, from OR, United States, asked on November 10, 2024

Will this fit with the woox vigilante hand guard?

A

Answered by Garrett, guest, from TX, United States, on January 07, 2025

No, the rifle speed gas blocks are tall and have a high port location that requires a straight gas tube. Since the woox hand guard has a low profile in the center, the gas tube will not fit. Confirmed this with the 2.1" rifle speed gas block on a carbine length barrel and my vigilante handguard.

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Q

Steven, guest, from TX, United States, asked on September 10, 2024

Is this fit the Anderson carbine length 16.5inches 556 barrel, handguard is 15inches

A

Answered by Taylor Francois, member, from OR, United States, on July 16, 2025

Order the longest one.

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Q

Roge, member, from NC, United States, asked on July 04, 2026

I have a question regarding the riflespeed gas block, is it a gas block that I’ll HAVE to drill lockdown dimples. Like is that a must do to use these?

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Q

Cameron M, member, from SC, United States, asked on July 02, 2026

I have purchased the Midwest Industries combat HD handguard for this block. I know MI had a complete rifle that comes with is, but just making sure.

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Q

Brandon Bianchi, member, from FL, United States, asked on December 01, 2025

What size will work with 10.3” barrel pistol gas length and 9.5” handguard?

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Q&A for Riflespeed Gas Control .750in Assembly Block — 13 Questions & 14 Answers