Q: When and will y’all make an adjustable gas block for .875 size barrel? I’m really interested in running the product on my 308 build.
A: The .875" models are launching this summer (2022). We don't have an exact date yet, but keep an eye on the site and our social media. Thanks for your interest in Riflespeed.
Q: What is the min space spec for this gas block to fit under a handguard?
I'm useing aero s-one and kansa handguards by kaw valley.
The kansa has a 1.6 min height spec inside the handguard. Cant remember what the aero s-one handguard min height spec is at the moment. Really want to try out your companys gas block but need some size specs before purchasing.
A: Clinton, we have dimensioned drawings for the Gas Controls under the "Fitment" tab on the Gas Control page. I can tell you for sure that the Atlas S-One won't work, though. The lowered center section doesn't allow enough room for the gas tube or Gas Control. Check out the Cross MachineTool HDM, DRT, and UHPR rails we offer for good options or others like the Midwest Industries Combat Rail or G4. All of the Geissele rails we've tried have fit as well. Thanks for your interest in Riflespeed.
Q: What is the gas block made of stainless or steel?
A: We use a combination of materials including 4140 Chromoly Vanadium, A286 Stainless Steel, 17-4 Stainless Steel, 17-7 Stainless Steel, and 6061 T6 Aluminum. All materials are selected as no-compromise choices based on the performance needs of a rugged and military grade component while keeping component weight in mind.
Q: Will the RS7543 behind a pin and welded 14.5 unscrew far enough to disassemble and replace plungers if desired?
A: No, you'll need to determine the Plunger you want to use before you pin & weld if using an RS7543. With an RS7533 you would have room to swap Plungers. Since Plungers outlast barrels it is generally unnecessary to change Plungers, however. Email us at [email protected] and we can help you with initial setup once you have your parts in hand. Thanks for your interest in Riflespeed.
Q: I have a 10” barrel with pistol length gas system with 9” handguard. I stumped the configuration tool… any suggestions.
A: The configurator is set to allow a minimum of 0.4" of exposed Control Knob. Your handguard is likely too long to allow this. Try entering different handguard lengths (select the checkbox to enter a custom measurement) and you can determine what length handguard you'd need to have adequate clearance. Thanks for your interest in Riflespeed.
Q: Hey Guy's,
Do you ever plan on making these in a .936" version?
A: .625" and .875" sizes are next. We will look at options for .936" models once those projects are launched. Thanks for your interest in Riflespeed.
Q: Hi, I was curious if the pin hole in the gas block (typically) lines up with existing holes pre drilled for A2 front sights? Was planning to replace the stock A2 front sight on my M&P Sport 2 and if I can simply pin the gas block using one of the existing holes, I'm sold. Thanks!
A: A standard FSB uses taper while the Gas Controls use straight coiled spring pins. Check out the Barrel Pinning page here on the website for an inexpensive option to have your barrel pinned. Thanks for your interest in Riflespeed.
Q: With the plunger rod that comes supplied with the RS7533 does the gas get shut off completely when it is adjusted all the way closed?
A: Each Gas Control currently comes with two Plunger sizes. On some configurations and chamberings the bolt will remain locked upon firing with one of these two Plunger sizes. Many 300BLK shooters use the #937 Plunger for this (included size) with subsonic ammunition. They can then dial back up to a higher number to cycle again. Some other configurations will use a longer Plunger like the #947, #957, or #967. There are many variables that affect which Plunger you'll need to select for this application including; port size, port position, ammunition used, suppressor used, bore, reciprocating mass, etc. Gas Controls are not designed to prevent unlocking with supersonic ammo, though that may be possible in some configurations as well. Thanks for your interest in Riflespeed.
Q: Does this work on a 7.5 at pistol? And which length
A: Yes. You'll need to enter the specific measurements of your setup in to the Configurator on the "Choose Your Gas Control" page (Link at the top of the website). Thanks
Q: This may be a dumb question, but I'm planning on converting my M5 Aero Precision from impingement to gas piston. Will this system work for gas piston as well?
A: No, pistons are not compatible.
Q: What is the model number for each length?
A: The last two digits of each mode number represent the assembly length. Thanks for your interest in Riflespeed.
Q: I was wondering what the dimensions and measurements are for the actual gas block. Would like to see if it fits under my handguard
A: Dimensioned drawings are available under the “Fitment” tab on the Gas Control page. Thanks for your interest in Riflespeed.
Q: I have a 20" barrel with a rifle length gas system, with about one and a quarter to one and half inches from the end of gas block to the end of the hand guard. From what I can tell it looks like the RS7533 .750 will work. Any input?
A: Sounds like the RS7533 will work, but enter your specs into the Configurator on the “Choose Your Gas Control” page to be sure. Thanks for your interest in Riflespeed.
Q: what plunger do I need to be able to turn the gas off and then switch it to all the way open for subsonic 300 blackout
A: Tyler, you’ll need to go through the setup process with your gun, ammo, suppressor, etc. to be sure, but we’ve had many reports of the #937 working for this purpose. That’s one of the two Plungers included in your Gas Control package.
Q: Hello, Have ever heard about someone mounting it on a CMMG MK47 ? Thx
A: We’ve used Gas Controls extensively on 7.62x39 ARs, but not that model specifically. Thanks for your interest in Riflespeed.
Q: my barrel length is 11.5" and the hand guard is 10.5" will your gas control work on my weapon? will in need to change to a 10" hand guard?
A: 10” would be ideal. With a longer handguard adjustments will be more difficult.
Q: Hello, I have a 9.5 Griffin Armament 300 blkout barrel but it came pre-dimpled for both set screws and was curious as to the spacing of the set screw of the 7543 model specifically, thank you.
A: Set screw spacing is 0.450”. Install the rear screw in the dimple then tighten the front wherever it lands. For additional security check out the “Barrel Pinning” page. Thanks for your interest in Riflespeed.
I used your calculator and it gave me model RS7558. From the front of my gas block to front of my rail is 3”. Is the 5 5/8” the entire assembly or just extension. Not doubting your calculator but my measurements were all custom. 20” criterion hybrid profile barrel & 16.625” rails. Thanks for your help.
A: The RS7558 is 5.8” long. The “Configurator” on the Choose Your Gas Control page is the best resource to determine fitment. If your entered accurate measurements you’ll get the correct answer. Thanks for your interest in Riflespeed.
Q: I have an 11.5" AR 15 carbine which has only 1 " from the hand guard to the end of the barrel. Will your gas control device work on my weapon? The diameter of the gas block is 0.750" and it is a low-profile gas block.
If the gas control won fit what can I do to make it fit?
A: The Gas Control will work, but may not be as easy to adjust as we’d like. The ideal configuration leaves 1/2” to 1” of the Control Knob exposed. Thanks for your interest in Riflespeed.
Q: there are 4 controls , how long are each of them . ? I have an 11.5 barrel, if I know how long they are it will help me decide witch one will work with my hand guard , .thank you
A: Enter your firearm's measurments on the "Choose Your Gas Control" page & you'll get color-coded results showing fitment. Thanks
Q: Do you have a minimum or recommended gas block seat length to accommodate your gas controls? If so, then what would that be? Thank you.
A: Any barrel that will accept a standard Li-profile gas block will have an adequate journal. Thanks for your interest in Riflespeed.
Q: I am looking into buying an “ar-10” style rifle in 308 win. I have been looking at Sig 716i, aero precision M5, and Savage MSR10. I use a 762SD can from AAC. Do you know if your gas block works with any/all of these without modifications? Any other 16in barrel upper or complete rifle under $2000 you suggest?
A: Gas Controls will work with any direct-gas AR with the appropriate journal diameter. We currently offer .750" diameter models, but .625" and .875" models are coming. You'll need to verify fit with your handguard as well (dimensions under "Fitment" tab on product page). That's much less of an issue with large-frame ARs, though. We have an M5 as a test rifle in the shop that works great. We'll also have complete 308 uppers added to the site as soon as the final components arrive. Thanks for your interest in Riflespeed!
Q: Hello I have a 16 inch barrel and 15 inch handguard I do see that this is not compatible however looking at the chart I see if I use a mid length version and the rs7558 the adjustable knob will be at the end of handguard not sticking out by your measurement however I do not mind as it doesn’t seem like I won’t be able to adjust just won’t be as easy. Will this still be okay ?
A: Yes, though adjustments will be more difficult.
Q: How much does each model of the gas controls weigh?
A: The RS7519 weighs 3oz, about 1oz more than most low-profile gas blocks. The RS7558 weighs 4.7 oz, or a bit less than a Milspec front sight base. Thanks for your interest in Riflespeed.
Q: Hello, do you know if this will fit inside a rock river lar15. I’ve looked at the dimensions of my gun and your spec sheets and it looks like it’ll be pretty tight. I just thought I’d ask before I order being RRA is a pretty popular brand you might have looked into this before? Thankyou!
A: We have not looked at that specific model, bt we have used other RRA models successfully. As long as the inside of the handguard is 1.225" or larger and the gas tube area is fully machined inside (almost all are) you should be good to go. Thanks for your interest in Riflespeed.