![]() Strike Industries is a staple name for handguards and furniture in questionable tastes of cerakote. Strike Industries SI Antiwalk/Antirotation Trigger/Hammer Pins The Wilson Combat Anti-Walk Pins start from $10.95 on their store. It’s compatible with all AR15s and AR10s that have 0.154” sized pin holes. Known for quality and robustness, Wilson Combat has their own set of anti-walk pins available in stainless steel and black finish. The KNS Precision Gen 2 Mod 2 bears a set of back plates that come in the shape of a baby rattle for those that want a different flavor. KNS brings another iteration of their Gen 2 anti-walk pins. While the back plates most certainly offer extra insurance, the design makes it problematic for users that want to file down their pins to size for their lowers. KNS Precision offers the Gen 2 Build-A-Kit with a set of nitrided backplates that ensure the screws aren’t budging from regular use once they’re installed. Be careful to not over-torque the screws.ĬMC also offers their same kit for older Colt lowers and the M&P 15-22 lower. They offer a subtle look and are no more than just trigger and hammer pins each threaded internally to accept screws on both sides. CMC Anti Walk Trigger PinsĪvailable in our own online store, we have the CMC Anti Walk Trigger Pins that come with each CMC drop-in trigger like the 3.5 lbs Curved Trigger. Let’s help you get started on that journey by pointing you to some popular choices. So you’ve decided to find yourself the best anti walk trigger pin you can find. Considered a band-aid solution for when it’s actually needed.Can be a cost-effective stop gap for out of spec lowers.Secures cassette and drop in AR trigger packs that need it.If you begin to experience trigger and hammer pins walking out on a lower with proper tolerance, it is much more likely that the problem begins with the trigger spring.īut what if you used a lower with a softer material like in a polymer lower receiver? What if you drilled both holes from one side on a table with a wobbly leg when building out your lower? Well then like users who decided to use a non-spring tensioned trigger, you might be in the market for some anti roll pins. M4A1s that see plenty of full auto abuse for years function just fine without anti walk pins. It takes a LOT of shooting and abuse before your lower receiver begins to go out of spec. If the primary purpose of installing anti rotation trigger pins is to prevent the pins from walking out, the long term solution is to ensure your mil spec lower has good tolerance or at the very least good warranty. Read more on how to properly maintain your AR in this previously covered topic. Although there isn’t reliable documentation of this fault, sufficient lubrication in the trigger pack should prevent this from becoming a problem at all.įor cleaning and lubricating purposes, we have in stock the trusty Hoppe’s 9 Lubricating Oil. The narrative behind this is that, with an anti-rotation kit installed, the hammer will have to resist the pins every time the hammer falls thereby increasing the potential for light hammer strikes. Some users contend that allowing the pins to rotate is critical to ensuring smooth fire control group operation. Mil spec AR15 trigger and hammer pins were developed to freely rotate with the trigger while spring tension kept the pins from walking out. This can be more noticeable on 80 percent receivers that were drilled unevenly which is not uncommon. If the holes are too big… then your pins can have enough space to loosen itself out of its seated position. If the holes aren’t big enough because you used a drill bit too small, then you obviously won’t be able to hammer the pins in. While this is not a problem for the CNC machines of big name AR brands today, it can be noticeable for people who aren’t perfectionists when drilling our 80 percent lowers by hand. Trigger pins can wiggle out of holes that weren’t made to spec. If the pins fall out it will take your fire control group with it, putting you out of the fight. The primary purpose of all AR anti rotation pins however is to ensure that the hammer and trigger pins do not wiggle and walk out of your AR over time. As implied by the name, AR15 anti rotation pins have mechanisms that prevent the pins from rotating while seated inside the lower receiver. What is an Anti Rotation Pin?Īnti rotation pins, also frequently called anti-walk pins, are AR15 trigger and hammer pins that secure tighter than conventional pins and roll pins. Today we cover their primary uses and merits in an AR build today. Anti roll pins are one of the many features developed within the AR15 aftermarket over the 2010s.
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