The threads are ½ in diameter (at the major) and feature 28 threads per inch (TPI). 4.8 out of 5 stars 140. Five times better? This is the OEM thread protector for the SPHINX 9mm barrel. 1911 Barrels. Seems the best of both worlds, no? HK VP9 9mm 13.5 X 1 Metric Left Hand Threaded Barrel- RCM Each barrel is finely and painstakingly made from ordnance grade steel, heat treated & finished inside & out in the ultra- desirable "nitride" finish. The venerable 1911 has long been a popular platform to build with custom barrels. Featuring a compact and lightweight suppressor, the Omega 9K was designed for optimized use on pistols, rifles, and submachine guns. Because our experience has taught us the opposite to be the case in most circumstances some shooters simply can’t flip the switch in their brain to turn the other way. Good luck. We recommend double checking your thread pitch with the original manufacturer of your barrel/firearm before making any purchases. People have a lifetime of training tightening clockwise on nearly everything, all over the world. Skip to the beginning of the images gallery. They are extremely strong and live up to the CMMG name of durability. Learn how your comment data is processed. See the following image. Ruger was notorious for threading their 10/22’s to the rifle length, causing major concerns for users bottoming out the blast baffle of their silencer on the end of the muzzle of their firearm, making direct contact with the baffle. The most common thread pitches for three popular 1911 calibers are listed below..38 Super – 1/2×28; 9mm – 1/2×28 Beduan Stainless Steel Long Threaded Screw, Fully Threaded Rod, M6-1.0 Thread Pitch, 250 mm Length. There are quite a few of options with this thread pitch and a large enough diameter for 9mm. Less time threading is more time shooting. If the engineers had thought about it, it would have made much more sense to make M13.5X1 a right hand thread, because the wrong threaded barrel on the 9mm solved no actual problem, but HK was probably engaging in an attempt to make the HK Tactical Left hand thread not seem stupid, so they stayed the course with the backward threads. The 9mm Tiger Rock Inc 3 Port Flash Hider is designed to help mitigate the dust signature when shoot.. In the event of a piston loosening up during a string of fire the distal end of the threads- the portion at the “bottom” of the threads (approximately ¾” rear of the crown – see figure below) features a tight diameter fit up. Barrel Thread Pitch: 1/2 x 28 tpi ⚠ WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and reproductive harm. This unthreaded portion is a major aid in threading as it all but eliminates the potential for cross threading, which is more likely with the finer and unprotected ½-28. 5.56.300 BLK.308 WIN. These barrels are well suited for a heavy duty build likely to see lots and lots of lead through it. Notice how fine the threads are and how the threads run the full length of the muzzle. 1X TITANIUM FLANGE HEX BOLT M7 X 10MM MX10MM LONG GRADE 5 6AL-4V 9MM HEX. 99. SIG SAUER factory replacement pistol barrels are specially heat-treated for toughness and durability. It is also the factory choice for Glock, Heckler & Koch, and SIG. Mike Smith of Dead Air Silencers – former lead design engineer of AAC Brand New. MSRP $569 - $643. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. Comprehensive technical information on thread gages for measuring threads. Vise and SUB-2000 Vise Jaws Are Required for 9mm Option. A ¼” spacer is typically required when there is too much thread, which in the silencer world is just as much of a problem as not enough thread. MSRP $549 - $3,961. Caliber Thread Pitch 9mm 13.5 x 1 LH Please Note:Image is for reference only, actual product may vary slightly. But the only reason it is left hand is because HK needed a different piston system in the OHG keep the KAC can built for the right hand MK23 off the more fragile HK Tactical .45 without the custom tailored piston system, so they made the threads backward on the more affordable, and thus market popular, HK Tactical. Not only is it mechanically better, but it has a much more sophisticated appearance. The threaded barrel is chambered in 9mm and allows you to attach a suppressor or other muzzle device. NEW Proprietary Convex Thread Protector with 1/2x28 Right-Hand Threads Slide and frame is Cerakote®-over-Nitride Optics-ready slide with one adapter plate that accepts the Vortex Viper optic footprint, plus an side reversible charging handle It features a coarser thread with 25.4 threads per inch compared to the 28 threads per inch of the imperial standard. Thread pitch: 13.5 x 1LH Forged in the fire of disciplined craftsmanship. Dear silencer lovers, I am going to clue you in to a little secret; you’re probably not going to like it but hear me out. This dedicated 9mm AR lower is designed to be used with the highly popular Glock magazines and even features a last round bolt hold open which is not a common feature of other 9mm lowers. If the host firearm is inadvertently dropped, the end of the barrel does not have threads that could become damaged. Using either ½-28 or M13.5x1LH also the factory with custom barrels allows you to a! 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