JP Enterprises AR-15 JP15 Upper Receiver Assembly 223 Remington (Wylde) 16″ Barrel


Category: Product ID: 13097


The JP Enterprise JP-15 upper receiver assembly is built on a forged upper with a 16″ Supermatch barrel. The lightweight barrel is made of 416 stainless steel, button rifled and cryogenically treated for outstanding accuracy. The 223 Wylde chamber is designed to be best of both the SAAMI commercial specification and the NATO chambering, allowing the widest variety of ammunition to be used, while retaining accuracy. The 1 in 8″ twist rifling produces good results with bullet weights from 40 to 77 grains. The 16″ barrel threaded 1/2″-28 with a JP Tactical Compensator. The Low Mass Bolt carrier is constructed of stainless steel with a QPQ finish. The QPQ finish is a five step treatment of polishing and hardening of the surface resulting in a very hard surface with a high level of lubricity. The bolt is constructed of SAE 9310 steel and exceeds the standard mil-spec in strength and service life. The low mass bolt carrier group and adjustable gas block work together to greatly reduce the felt recoil and keep the gun on target. It is recommended to us a LMOS buffer (available separately) with this upper receiver. The JP MKIII Signature Series handguard is a reduced diameter free-floating handguard with provisions for mounting accessory rails in many positions. The reduced 2″ diameter of the handguard makes it more comfortable in the hand and allows for better control of the rifle. The large ventilation slots and thermal dissipater work together to keep the barrel cool. The upper assembly is the perfect package for the competition shooter. Includes a Silver Thermal Dissipator, Low-Profile Adjustable Stainless Gas Block, and Sling Studs



Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.

Product Information

Cartridge 223 Wylde
Material Aluminum
Barrel Length 16 Inches
Twist 1:8 Inches
Threads 1/2″-28
Barrel Contour Lightweight
Sights No
Barrel Finish Stainless Polished
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Mid-Length
M4 Feed Ramps Yes
Upper Receiver Type A4 Flat-Top
Barrel Material 416R Stainless Steel
Handguard JP MKIII Signature Series Free Float Handguard 15″
Bolt Carrier Assembly Included Yes
Muzzle Device JP Standard Profile Compensator
Mil-Spec or Commercial Mil-Spec
Compatible With

Delivery Information

Shipping Weight 5.960 Pounds


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