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POF-USA® Single-Stage Full-Auto Drop-In Trigger Assembly – 4.5 lb. Pull Weight – Red Anodized 6061 Aluminum Housing – Nitride Heat-Treated Core – Includes KNS Precision® Anti-Walk Pins – 00801
Product Description
The POF-USA® Single-Stage Full-Auto Drop-In Trigger Assembly (00801) represents an elite mechanical milestone in machine gun restoration, specialized select-fire enhancement, and high-efficiency tactical weapon staging, proudly manufactured and individually inspected by American craftsmen in Phoenix, Arizona, USA. Explicitly engineered to drop into registered NFA full-automatic lower receivers or official post-sample machine gun platforms, this pre-assembled trigger cassette completely bypasses the tedious, inconsistent tuning loops of multi-piece military-surplus fire control components. While traditional multi-component mil-spec select-fire triggers introduce immense take-up creep, gritty stage resistance, and loose lateral frame slop that degrades downrange target tracking, the POF-USA assembly delivers match-grade precision. This flagship NFA-compatible hardware asset (847313008015) yields absolute mechanical and operational authority over your platform’s select-fire tracking cycles.
The core structural superiority of this drop-in power unit relies on its monolithic red anodized 6061 aluminum housing and premium nitride heat-treated internal alloy core. Carved from high-tensile American billet metal, the bright red housing contains a custom-tuned trigger, disconnect, and hammer matrix machined from high-grade alloy steel. Every critical internal interaction face is deep nitride heat-treated to an ultra-hard 70 Rockwell case hardness metric, providing ultimate surface resilience against aggressive bolt carrier smackback during cyclic full-auto bursts. The housing is outfitted with POF-USA's signature rubber urethane tensioning feet built directly into the base structure. When squeezed flush against the floor of your lower receiver cavity, these elastomeric dampeners exert a constant upward force that takes up all loose micro-tolerances, keeping the trigger block perfectly snug inside your lower without scratching or scratching the anodized frame tracking lines.
The true tactical victory of this American-built modification package centers on its **exceptionally crisp break, zero-creep take-up loop, and premium anti-walk hardware**. Calibrated to a reliable, clean 4.5-pound single-stage pull, this unit provides a highly distinct tactile wall and lighting-fast reset path, ensuring that whether firing single precision shots in semi-automatic or running sustained suppressive cycles in full-auto, your finger encounters total mechanical predictability. The package ships complete with custom-fit, non-rotating **KNS Precision™ stainless steel anti-walk pins** featuring left and right-side retention plates. This critical upgrade distributes the intense shear forces generated by full-automatic fire across the entire exterior receiver wall, permanently preventing the standard pin holes from ovalizing or walking out during firing. Spanning standard 0.154-inch small pin receiver dimensions, this premium engine ensures absolute technical and physical uniformity over your weapon platform's firing corridor.
Includes: (1) Authentic POF-USA Single-Stage Full-Auto Drop-In Trigger Assembly (Red Anodized 6061 Aluminum Housing, Nitride 70 HRC Heat-Treated Internal Steel Components, Traditional Curved Trigger Bow), (2) Stainless Steel KNS Precision Anti-Walk Pins, (2) Stainless Steel Locking Retainer Plates, and (4) Torx Fastener Retention Screws, Packed inside Original Branded Factory Sealed Retail Packaging.
*Administrative Armorer Staging, Mandatory Legal NFA Compliance & Pistol Caliber Warning Guidance: The POF-USA 00801 is a specialized select-fire replacement component. **CRUCIAL LEGAL MANDATE STATUTORY WARNING:** This trigger assembly is designed specifically with select-fire auto-sear clearance geometry. This component WILL NOT turn a standard semi-automatic rifle into a fully automatic machine gun. It is strictly intended as a replacement drop-in asset for legally registered NFA full-auto lower receivers, post-sample manufacturing builds, or official military/law enforcement hardware configurations; all Federal NFA rules and local ordinances apply. **PISTOL CALIBER CARBINE (PCC) SYSTEM BAN:** POF-USA explicitly **does not recommend or warrant the use of this drop-in trigger cartridge in any 9mm, .40 S&W, .45 ACP, 10mm, or alternative blowback Pistol Caliber Firearms**. The violent, unbuffered bolt velocity characteristic of blowback PCC designs will damage the internal disconnector mechanism and permanently **VOID the factory warranty**. During bench field installation, torque the KNS Precision plate screws carefully to a maximum of 12 inch-pounds using a drop of medium threadlocker; do not over-tighten. Ensure your firearm is entirely unloaded, the magazine is removed, and the chamber is visually verified empty before executing component staging loops.
Key Features
- Genuine Drop-In Cassette Setup: Pre-assembled inside a monolithic housing to eliminate loose internal springs and detents, sliding easily onto standard small-pin receivers.
- Full-Auto Select-Fire Profile: Machined with verified military-spec clearance channels to integrate perfectly with standard auto-sears and select-fire safety selectors.
- 70 Rockwell Nitride Steel Internals: Critical trigger, disconnect, and hammer cores are case-hardened to withstand high-cyclic impact stresses and resist carbon scoring.
- Signature Urethane Tension Feet: Employs proprietary rubberized bottom pads that flex inside the receiver well to completely remove internal wobble and rattle without set screws.
- KNS Precision Anti-Walk Pins Included: Bundled with custom stainless steel non-rotating pins to lock the trigger block in place and safeguard your lower receiver against pin-hole elongation.
- Red Anodized 6061 Housing: Housed within a CNC-machined, corrosion-resistant aircraft-grade aluminum chassis for ultimate structural alignment.
Product Specifications
- Brand: POF-USA® / Patriot Ordnance Factory (Precision machined, heat-treated, and endurance vetted natively in Phoenix, Arizona, USA)
- Product Line: High-Performance Drop-In Trigger Systems & Lower Receiver Select-Fire Upgrades
- Model Series Designation: Single-Stage Full Auto Drop-In Trigger Core – Curved Bow Edition
- SKU / MPN: 00801 (Alternative Industry Identifiers: POF-00801 / MPN-801 / 801-FA)
- UPC Barcode Number: 847313008015
- Receiver Chassis Compatibility: Registered NFA Full-Auto AR-15, M16, M4, and AR-10 / SR-25 Lower Receivers (Mil-Spec Small Pin Layout)
- Trigger Pin Dimension: 0.154-Inch Standard Small Pin Core Tracking Path
- Caliber Optimization: Multi-Caliber Base (.223 Remington, 5.56x45mm NATO, .308 Winchester, 7.62x51mm NATO, 6.5 Creedmoor, etc.)
- Trigger Style & Stage Class: Single-Stage Fixed Kinetic Break Configuration
- Total Preset Pull Weight: 4.5 lbs. (~2.04 kg) Constant Factory-Calibrated Index Ceiling
- Trigger Bow Shape Profile: Traditional Ergonomic Curved Finger Bow Profile
- Housing Material Shell: CNC-Machined 6061-T6 Aircraft Grade Billet Aluminum Shell
- Housing Surface Finish: Type II High-Visibility Deep Red Anodized Protective Coating
- Internal Metallurgy Matrix: American Steel Alloy Nitride Hardened to 70 Rockwell Case Density
- Dampening System Interface: Dual Bottom-Mounted Rubber Urethane Expansion Pads
- Fasteners & Pins Included: 2x KNS Precision Gen 2 Stainless Anti-Walk Axles & Thread-Matched Retaining Side Plates
- Product Net Component Weight: ~3.20 oz (~90.7 g) Lightweight Mass-Optimized Cartridge Block
- Total Packaging Shipping Mass: ~0.45 lbs (Enclosed Inside Secure Clear Rigid Protective Factory Hanger Shroud Packaging)
