Loctite clamp on gas block. I pin everything now.

Loctite clamp on gas block Feb 20, 2013 · We install a lot of Mk12 gas blocks with two set screws and Red Loctite. 906 diameter. ensure that the gas block is seated against the shoulder of the gas block journal. Same as above but no drilling, just crank down with Loctite. I cannot say they are just as secure as a taper pin through an A2 FSB, but many have to be destroyed to get off. “Hand tight” is roughly around 25 inch pounds. I have not had any problems with my clamp on gas block with no loctite and I get mine hot. 906 comes from Triton and is held in place by a set screw and probably blue Loctite. Advantages of Clamp-On Gas Block. Jan 27, 2023 · On gas block set screws, I've only heard one person, James Yeager, say to use Rocksett, and not red Loctite like the masses say to use. Jan 24, 2011 · If your gas block fits without an interference fit, red on every thread (Loctite 271 or 271), then stake the screws, before the Loctite, or other agent such as Rocksett, cures. Otherwise, you will need to measure the distance from the gas Oct 13, 2014 · As most of you know, the barrel bulge in this barrel for the FGB is . Sep 27, 2018 · When a low profile gas block is covered by a rail and where correctly designed cup style set screws are tightened properly, the gas block is well-secured. Both systems can attach a gas block satisfactorily onto the barrel, depending on your shooting habits. If you are using a JP Supermatch or similar barrel, ensure that the gas block is seated against the shoulder of the gas block journal. IE, to get accurate torque, the threads nee Jan 29, 2012 · The advantage is its an easy on and off for changing/swapping out barrels. For a non suppressed AR, red or even blue loctite are stronger. non-pinned w/ locktight What's the saying? "There is no free lunch. The gas block is one of the hottest parts on an AR-15. At that point I thought I was home free, and proceeded to the range to get my Superlative Arms clamp on gas block settings adjusted and clamped securely onto the barrel with some loctite. I use blue loctite on gas block dozens of time, no problem. Clean up/degrease the barrel and block/block threads Apply green loctite retaining compound to inside of block (avoid threads and gas port) Slide block on Apply red loctite to set screws Torque to 25 in/lbs Stake the block over the set screws Clean up any mess. These diameters are associated with diameters of different types of barrels. We recommend degreasing the threads of your gas block set screws and gas block with alcohol or acetone. Jan 29, 2010 · Can anyone tell me if there the advantages and disadvantages to going with a pin on or clamp on gas block. I mounted my gas block today, but have no viable locktite on hand. Jame's reasoning was that Rocksett is good to 3000 degrees f. In fact, I had to drill out several set screws because the blue loctite wouldn't budge. The only low profile gas block in . 875″ (heavy barrels), and . Dec 24, 2019 · Red loctite will soften if you heat the gas block. , while red Loctite is only good to 300-ish f. Set screw v clamp is not the most important decision in your build. If you really want it to stay, in addition to the thread lock, get some loctite high temp retaining compound, and use that between the gas block and barrel, just don't get it in the gas port Enough to do several gas blocks at a time. It’s not getting knocked around. I pin everything now. Stoner made parts to interlock or used staking to be 100% reliable. Gunsmiths soak parts in boiling water - 212F - to loosen it up enough to remove screws. Jul 26, 2012 · Then put a 1/4 inch L shaped bend on one end of it. +1 to the pencil marking Clamp-on and set screw are two different ways of mounting the same piece. 4. I just hand tightened the screw until it couldn't turn any more. Otherwise, you will need to measure the distance from the gas Jul 28, 2016 · Quoted: Sorry for the hijack, but I am in the same boat as the OP. 936 (bull barrels, more common). Every threaded interface in the AR platform has a torque spec, and every single spec is for "wet" threads. Apr 25, 2014 · Loctite is certainly stronger if you want a semi permanent install on a semi-auto unsuppressed gun. I've had blue loctite hold like a champ on gas block clamp screws , but I'm switching to rocksett now for the heat performance. Mar 19, 2014 · Red (271) or blue (242) loctite will be just fine on low-pro gas block screws. Rocksett is apparently the way to go for gas blocks since it is unaffected by heat. Both of their spec sheets state to heat to 250C for removal if you can't do it by hand at first. Didn't need to use a torque wrench. Nov 7, 2021 · Quick Lesson on Diameter: Gas blocks come in different diameters. I like Rocksett and use them on my gas block set screws. Jun 27, 2021 · Blue Loctite absolutely will turn to dust on a gas block with enough rapid fire. 5” past the point where the barrel exits the gas-block (on older Minis there may be circular indexing marks there). However, with that being said I am entertaining the idea of buying a Centurion Arms barrel and they have an option to buy the barrel with a pin on low profile gas block already Oct 17, 2018 · Get some high temp red loctite and with a dimpled barrel, that gas block won't come off any time soon. Jun 27, 2021 · Blue loctite doesn't melt on a gas block set screw. Get one that fits under the handguard and move forward. 5. 3. Insert the bend through the hole in the low profile gas block where the gas tube goes and down into the gas port hole on the barrel. Use the clamp style, with or without the pin. 750″ (most common for standard barrels), . 936″ (typically found on competition or custom barrels). If I'm going to change the current FGB which is taper pinned along with blue Loctite, I would like to install a clamp on FGB. 875 (bull barrels, less common),. There is no specified milspec thread locker for the M16 series. " If it's for duty/hard use, the gas block should be pinned in some form. Just my opinion, I'm sure others have had good luck with their methods. With a dimple properly made in the bottom of the barrel, the gas block is not going anywhere. I suppose blue loctite will work, not sure how how hot a gas block gets vs. Those pins can be a bitch sometimes. Although Loctite 271 is resistant to slightly greasy threads, we have found that the primary cause of failure comes from improper cleaning and installation of the threadlocker rather than the type used. Feb 5, 2025 · Barrel Profile: Gas blocks are designed to fit specific barrel diameters at the gas port location. Jun 7, 2023 · The trend for handguards covering gas blocks mostly obviates the need for a “bombproof” gas block. One of the most accurate barrels I have has the gas block temperature fit to the barrel with a set screw only as a triple backup. Mar 10, 2009 · Set screw style - mount, fire, check carbon mark to confirm alignment, drill shallow points where set screw marks are, re-install with Loctite on the set screws. The forward clamp is located 3. After dialing in the gas settings (9 clicks for reliable bolt hold open with PMC XM193) I proceeded to smear some red loctite on the clamp screws and torque Jul 1, 2008 · In other words, cross-drilling for taper pins, or drilling for set-screw dimples would be worse than a clamp-on gas block. 625 (pencil barrel),. Clamping is one of the most common ways of mounting a gas block. Same as above but drill and ream for a tapered pin to lock in place. On newer tapered barrels, clamp should be shifted forward about ¾” to accommodate the tapered portion of the barrel (clamp will flex to some degree; see the photo below). that the gas block is seated against the shoulder of the gas block journal. IIRC, some High-Power shooters used to buy unfinished front sight bases, and then use Loctite to hold them on the barrel instead of taper pins. Because Aero is stupid. Clamp style is the best option, and if you are worried about it moving, it's really easy to bed a gas block to the barrel and put a lip to more permanently affix it in place. 750 (standard government barrel, most common), . The only thing that I learned is not to use Loctite on the screws in the gas block. 625″ (lighter profiles), . If you have any doubt and the rifle is going to see extremely rough duty, you may use a tiny bit of red Loctite on the screws. The two functional threadlockers for this role are Loctite 272 (thermally resistant) and Rocksett. It seems to me that a pin on would be harder too install. Align the gas block to the barrel. I was going to go down and buy another tube of the Red, but read another thread on this forum saying that Rocksett is the way to go, so I ordered a bottle, but it will take several days to get here at the minimum. I know the common answer is to red Loctite the screws, but If I ever have to remove the block, I'm worried applying the heat necessary will discolor both the barrel and gas block. I have had the clamp style gas blocks and set screws come loose over time with some builds. It just needs the screws to not back out. Then tape the long end of the paper clip to your barrel until you are completely through doing the low profile gas block installation. 025” from the shoulder to account for Apr 13, 2010 · I am currently waiting for my BCM stainless barrel and Vltor stainless clamp-on gas block to arrive, but I'm worried about how to install the gas block. I use gas blocks that have an interference fit. Feb 17, 2017 · I've used JP Enterprises and Superlative Arms clamp-on gas blocks and have never had a single issue with them on any of my builds. Mar 3, 2006 · Re: Gas Block - Pinned vs. 025” from the shoulder to account for the hand guard retainer. There is. blue loctite temp value, but Rocksett removes the uncertainty and just does the job without much worrying. Common sizes include . If your barrel is designed for a Mil-spec gas block and hand guard spacer, you will need to move the gas block forward approximately . vridl mndasm rnj rplhvi awxdg ocmk wwyerhfw vlnu ynjtzmxl aanpgq illi gtsozr wvnu ifdd bcpn