Description:

P.O.F-USA has engineered, manufactured and tested this system. We are extremely proud of the durability and performance of the P-415 / P-416 Gas-Piston uppers. We have eliminated features of the Gas Operating System such as gas-rings, gas tube, gas key. The P-415 / P-416 Gas-Piston system also eliminates Heat, Carbon build up and Gas Leaks which can have an adverse effect on the operating system. The biggest issue being “HEAT”. A weapons first priority, must be “RELIABILITY”.

We first displayed our gas piston uppers at the 2004 Shot Show. We have engineered the entire system using standard “AR15/M16″ style parts such as the flat top receiver and bolt. We add only three additional parts to operate our gas piston uppers (Gas plug, Gas piston, and push rod). All uppers come standard with C.R.O.S+ ™ (Corrosion Resistant Operating System), which allows our weapon system to operate without the need of lubricant.

Specifications:

Barrel:

• 18″ Heavy contour, Fluted to reduce weight and Heat
• 4150 Mil-B-1159F Vanadium Alloy (machinegun rated)
• 70 Rockwell case hardened heat treated “5R” polygonal
barrels are 2X harder then Mil-Spec & Hammer Forged barrels
• Corrosion resistant and 10 times thicker and hardness than mil-spec chromed lining
• “5R” Polygonal Rifled barrels from Rock Creek Barrels, Inc.
• POF-USA muzzle device
• Chamber: 5.56 mm NATO (.223 Cal.)

Method of Operation:

• Gas Piston operated, rotating bolt (short stroke system)
• 2-position gas plug for Normal (N) or Suppressed (S) operating modes
• C.R.O.S.+ (Corrosion Resistant Operating System): NP3 Coating Chrome plated: Barrel, Gas Block/Tube (billet machined), Gas Plug (billet machined), Gas Piston (billet machined), Bolt Carrier Assembly (Integral Keyed Billet Machined), Teflon Nickel plated A3 Flattop Upper Receiver and Charging Handle.

Bolt & Carrier:

• Teflon Nickel Plated 8620 Integral Keyed Steel Bolt Carrier (billet machined), heat treated / plated per Mil Spec.
• Chrome plated Bolt, heat treated, to Mil-spec

Upper Receiver:

• A3 Flattop, Forged 7075-T6 aircraft aluminum alloy
• A3 Flattop: Black Teflon
• Charging handle: Nickel Teflon Coated

Handguards:

• Sling/Bi-pod mount
• MRR Modular Railed Receiver Hunting/Sniper™ Rail system
• Heat Sink Barrel Nut

POF-USA Specifications:

All raw materials are manufactured from U.S. Steel Mills. All heat treats, plating/coatings, are completed by U.S.A. owned and operated manufacturers. All accessory and component parts on our weapons systems are from U.S.A. owned and operated manufacturers. All of our weapon systems are 100% pure American made.