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Eliminate pin walk and receiver damage for good. Anti-Rotation set mechanically locks your trigger and hammer pins in place, ensuring consistent trigger pull and protecting your lower receiver. Precision-machined from hardened 4140 steel with a durable Type III Anodized Black hard-coat for tactical, low-glare durability. Standard .154″ diameter fits all mil-spec AR-15/AR-10 lowers. Includes pins, plates, screws, and a wrench.
In stock – ready to ship
In stock – ready to ship
The AR15 Anti-Rotation Trigger Hammer Pin Set in Anodized Black is the definitive solution to the most common and costly failure point in a standard AR fire control group: pin walk and pin rotation. Factory mil-spec trigger and hammer pins are held in place only by spring pressure. Under recoil, rapid fire, and high round counts, they can rotate and walk out laterally. Cause an inconsistent and gritty trigger pull, and permanently elongate and damage the pin holes in your lower receiver. This complete anti-rotation system mechanically locks your pins in place for life.
Unlike standard pins, this system uses two precision-ground .154″ diameter pins, and contoured, low-profile side plates capture them. Four high-strength stainless steel Torx screws secure the plates, creating a solid interlocked assembly that cannot rotate or migrate. This ensures perfect and consistent alignment between your trigger, hammer, and disconnector, delivering a repeatable trigger break shot after shot. More importantly, it provides absolute protection for your lower receiver. Preventing the egging and wear that can ruin an expensive billet or forged lower.
We manufacture each pin from hardened 4140 chromoly steel, heat-treat it for maximum strength, and then precision centerless-grind it to an exact .154″ small-pin diameter for a zero-wobble, precision fit in all mil-spec AR-15, M4, and AR-10 / LR-308 lowers. An Anodized Black Type III hard-coat finish covers the entire set – pins and side plates. This mil-spec anodizing provides a sleek, low-glare, tactical matte black appearance that perfectly matches any black lower receiver, while delivering exceptional resistance to abrasion, corrosion, gun oils, and harsh cleaning solvents. It is a durable, professional-grade finish built for duty, defense, and hard use.
Fully compatible with all mil-spec lower receivers, this ar15 anti rotation pin set black works with mil-spec, enhanced mil-spec, single-stage, two-stage, and most drop-in cassette-style triggers. By eliminating unwanted friction and movement, the system contributes to a smoother overall trigger feel and significantly extends the service life of your fire control components.
This is affordable insurance and a critical performance upgrade for duty rifles, home defense builds, competition guns, and precision ARs.
KIT INCLUDES: 2x Anodized Black Anti-Rotation Pins (.154″), 2x Anodized Black Locking Side Plates. 4x Stainless Steel Torx Screws, 1x Torx Wrench.
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