Strike Industries Anti-Walk / Anti-Rotation Trigger & Hammer Pins - QPQ Nitride Steel, External Bridge Plate, Standard 0.154" Diameter, Matte Black - SI-AR-AWP
Product Description
Building a high-performance custom rifle or drop-in cassette trigger system requires lower receiver group pins that stay completely anchored under high-speed operation. Under the aggressive mechanical vibrations of rapid fire or suppressed operations, traditional mil-spec trigger pins can gradually rotate or migrate outward, egging out the aluminum frame holes over time on your workbench. The **Strike Industries® Anti-Walk / Anti-Rotation Trigger/Hammer Pins (SI-AR-AWP)** completely flatlines this structural issue, combining a rigid anti-walk lock with a mechanical anti-rotation link system to fully secure your fire control group.
Proudly engineered and torture-tested by Strike Industries, this structural armorer upgrade features core pins precision-machined from heavy-duty **tensile steel treated with a QPQ black nitride finish**. Unlike basic locking sets that only prevent side-to-side drift, the SI-AR-AWP system includes a specialized **external steel bridge plate** that locks both pins together, physically preventing them from spinning inside the lower receiver. The core shafts are cut to a standard **0.154-inch diameter profile** to ensure broad drop-in cross-compatibility, while the ultra-low-profile button screws sit perfectly flat against the receiver wall.
Complete with its own installation hex key and pre-calibrated locking hardware, this turn-key lower enhancement delivers absolute firearm staging security directly on your workbench.
*Armorer Bench Notes & Real-World Receiver Staging Guidance: The Strike Industries SI-AR-AWP kit arrives fully equipped with 2x QPQ nitrided steel pins, 1x structural external steel anti-rotation bridge plate, 2x low-profile hex head fasteners, and a matching installation Allen wrench. UNIVERSAL MIL-SPEC 0.154-INCH SPECIFICATION INTERFACE MATRIX: This dual-locking pin set is engineered natively, strictly, and cross-compatibly to fit **standard AR-15, AR-9, and AR-10 / SR-25 lower receivers utilizing 0.154-inch trigger and hammer pin holes**. *Drop-In Custom Trigger Focus:* This assembly is an essential upgrade for drop-in cassette trigger units (such as CMC®, Timney®, or Rise Armament®) that do not use traditional internal hammer spring legs to hold grooved pins in place. System Sizing Exclusions: This component **will not fit older large-pin Colt® lower receivers featuring 0.169-inch holes** on your bench. Armorer Workbench Staging Sequence: 1. Visually and physically confirm your rifle lower receiver is completely clear of ammunition, magazines are separated, and the internal hammer is safe and uncocked. 2. Push out your legacy trigger and hammer pins using a standard 5/32" drift punch. 3. Lightly coat the smooth nitrided pin bodies with quality gun grease. 4. Guide the pins into your receiver through the fire control group until the slotted head ends sit flush against the right-hand receiver wall. *Bridge Alignment Step:* Ensure the indexed slots on the right-hand pin ends align perfectly to lock flat together. 5. Flip the receiver over to the left side, set the steel bridge plate down over both open pin ends, and apply a pin-head droplet of medium blue thread locker to the low-profile hex screws. 6. Thread the screws through the plate into the pin cores, tightening them down evenly with the included hex key until firmly hand-snug downrange.*
Key Features
- Dual Anti-Walk & Anti-Rotation Defense: Features a rugged external steel bridge plate that ties the pins together, preventing them from drifting side-to-side or spinning inside the frame holes.
- QPQ Nitrided Tensile Steel: Precision-machined from high-grade structural steel and finished with an ultra-hard QPQ black nitride coat to prevent friction wear and trail corrosion.
- Standard 0.154-Inch Outer Profile: Engineered to match standard mil-spec receiver dimensions perfectly, ensuring clean drop-in installation across a wide bandwidth of lower receiver brands.
- Cassette Module Structural Anchor: Delivers the permanent mechanical clamping force needed to securely stabilize custom drop-in trigger housings that lack built-in pin capture springs.
- Low-Profile Snag-Free Profile: Built with ultra-slim, low-profile screw heads and a contoured bridge plate that sits flush against the receiver wall to prevent catching on slings or gloves.
- Complete Turn-Key Setup Kit: Arrives bundled with dedicated installation Allen keys and factory-fitted fasteners to streamline your lower building and workshop staging steps.
Product Specifications
- Brand: Strike Industries® (Las Vegas, Nevada)
- Model Line: High-Performance Tactical Lower Receiver Enhanced Parts & Target Accessories
- MPN/SKU Code: SI-AR-AWP (Also cataloged as ARAWP / AR-AWP)
- UPC Code Profile: 708747546866
- Receiver Pin Hole Diameter: Standard Mil-Spec 0.154 Inches (Uniform Trigger/Hammer Sizing Profile)
- Chassis Platform Compatibility: AR-15, AR-10, AR-9, M4, M16 Pattern Lower Receivers Natively
- Pin Body Core Material: Premium Heavy-Gauge CNC-Machined High-Tensile Carbon Steel Alloy
- Anti-Rotation Link Bridge: Stamped High-Strength Rigid Structural Steel Anti-Rotation Plate
- Exterior Core Finish: Premium QPQ Liquid Ferritic Nitrocarburizing (Black Nitride) Coating
- Fastener Nut Component Material: Low-Profile Button Head Hex Retention Screws (Black Oxide Finish)
- Full Kit Component Checklist: 2x QPQ Nitride Pins, 1x External Bridge Plate, 2x Hex Screws, 1x Hex Wrench
- Packaging Format Class: Factory Original Sealed Strike Industries Peg-Hang Slim Retail Blister Box Pack
- Product Type Category: Rifle Components / Lower Receiver Parts & Trigger Pin Upgrades
- Overall Bridge Plate Length: ~1.18 Inches (~30.0 mm Linear Receiver Clearance Footprint)
- Net Combined Hardware Mass: ~0.25 Ounces (~7.0 Grams Ultra-Lightweight High-Strength Tactical Core Weight)
- Country of Engineered Origin: Developed, Field-Tested, and Calibrated Proudly in the USA
- Warranty Tracking Protection: Fully Backed by Strike Industries Factory Limited Materials Warranty
