Armaspec Anti-Walk Trigger & Hammer Pins - Stainless Steel Core, Low-Profile Hex Fasteners, Dual Wrench Set, AR-15 / AR-10 Platform - ARM136-SS
Product Description
Staging a high-volume rifle or a specialized drop-in cassette trigger group requires lower receiver pins that stay perfectly anchored. Under the high-frequency vibrations of continuous rapid-fire strings, standard mil-spec trigger and hammer pins can gradually walk out of their receiver holes, threatening to cause hammer failure or permanently egg out your aluminum receiver pins paths on your workbench. The **Armaspec® Anti-Walk Trigger/Hammer Pins (ARM136-SS)** completely flatlines this structural vulnerability, providing a mechanical locking anchor kit that bolts your fire control center into place.
Proudly engineered and precision CNC-machined in the United States to strict tactical parameters, this drop-in upgrade features core pins cut from a premium grade of **heavy-duty structural stainless steel bar stock**. Swapping out traditional internal J-spring tension loops for an external locking setup, each pin is drilled and tapped on the ends to receive low-profile button head hex screws. The **0.154-inch standard diameter profile** ensures a perfect drop-in fit for mil-spec receiver boundaries, while the clean, natural stainless steel body contrasts neatly against matte anodized receivers for simple visual tracking during routine inspection cleanings.
Arriving as a complete kit with a pair of matching installation Allen keys and low-profile fasteners, this turn-key armorer modification guarantees fire control system security straight from your workbench.
*Armorer Bench Notes & Real-World Receiver Staging Guidance: The Armaspec ARM136-SS anti-walk kit arrives fully equipped with 2x stainless steel core retaining pins, 4x low-profile black button head hex screws, and 2x matching Allen wrench tools. UNIVERSAL MIL-SPEC 0.154-INCH CALIBRATION INTERFACE MATRIX: This locking pin pair 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**. *Cassette Trigger Staging Focus:* This kit is highly recommended for drop-in custom trigger groups (such as Timney®, Rise Armament®, or CMC® modules) that lack built-in spring tension detents to grip traditional grooved pins. System Dimensional Exclusions: This model **will not fit older Colt® lower receivers featuring large-pin (0.169-inch) configurations** on your bench. Armorer Workbench Staging Sequence: 1. Visually and physically confirm your rifle lower receiver is completely separated from the upper, magazines are clear, and the internal hammer is uncocked in a safe configuration. 2. Push out your legacy trigger and hammer pins using a standard 5/32" punch tool. 3. Thread a single hex screw into one side of an Armaspec stainless pin body and snug it down. 4. Lightly coat the smooth pin body with gun grease, align your internal trigger or hammer holes, and slide the pin through the receiver wall until it sits centered. 5. Place a pin-head drop of low-strength blue thread locker onto the remaining hex screw, thread it into the open end, and utilize both included Allen keys simultaneously on opposite sides to torque the fasteners down until snug. *Critical Tension Warning:* Do not over-torque these micro fasteners; stop once they feel firmly hand-snug to prevent stripping out the internal thread tracks downrange.*
Key Features
- Rock-Solid Mechanical Security: Replaces traditional smooth retention pins with a bolted, double-locking design that physically prevents pins from walking out under heavy recoil.
- Premium Stainless Steel Cores: Precision CNC-machined from high-grade structural stainless steel bar stock to resist high shear stresses, wear deformation, and environmental corrosion.
- Standard 0.154-Inch Outer Profile: Engineered to match standard mil-spec receiver pin dimensions perfectly, ensuring seamless drop-in compatibility across a wide layout of brands.
- Low-Profile Button Head Fasteners: Outfitted with sleek, black-oxide treated end screws that sit flush against the outer receiver wall to prevent catching on gloves or clothing.
- Essential Drop-In Cassette Component: Delivers the permanent mechanical friction clamping needed to securely anchor modular drop-in trigger housings that lack built-in retention springs.
- Complete Armorer Installation Kit: Arrives bundled with dual-sided hex keys and replacement fasteners to ensure straightforward, toolless assembly on your staging bench.
Product Specifications
- Brand: Armaspec® (Burleson, Texas)
- Model Line: High-Performance Tactical Lower Receiver Security & Internal Upgrades
- MPN/SKU Code: ARM136-SS (Stainless Steel Anti-Walk Configuration Base SKU)
- UPC Code Profile: 810048491162
- 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 Stainless Steel
- Locking Screws Material: Hardened Carbon Steel Button Head Cap Fasteners (Hex Drive)
- Locking Screws Exterior Finish: Non-Reflective Corrosion-Resistant Black Oxide Dressing
- Pin Core Body Dressing: Natural Smooth Raw Satin Stainless Metallic Luster
- Retention Fastener Drive Size: Standard Micro Hex Key Interface (Dual Wrenches Included)
- Full Kit Component Checklist: 2x Stainless Pins, 4x End Screws, 2x Hex Adjustment Wrenches
- Packaging Format Class: Factory Retail Sealed Peg-Hang Clear Presentation Blister Pack Card
- Product Type Category: Rifle Components / Lower Receiver Parts & Trigger Pin Upgrades
- Net Combined Hardware Mass: ~0.18 Ounces (~5.1 Grams Ultra-Lightweight High-Strength Metal Component Weight)
- Country of Engineered Origin: Developed, Sourced, Machined, and Performance-Tested Proudly in the USA
- Warranty Tracking Protection: Fully Backed by Armaspec Unconditional Factory Lifetime Warranty Guard
