Basic URG – 15 Inch M-LOK – 16 Inch 4150CMV Nitride Barrel – Carbine Length 1/8 Twist – 5.56 MM


URGs are generally built to order so feel free to contact us to request any changes or specific needs. Estimated time to ship from day of order 7 to 14 days.


This is a basic, general purpose Upper Receiver Group (URG) perfect for the casual user or operator that needs an accurate, durable upper but doesn’t want to break the bank. These uppers ship test fired and inspected and come with our lifetime warranty, not bad for under $300! Check out the specs below:


This 5.56 chambered 16 inch Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. These barrels are properly stress relieved after rifling, air-gauge tested, and individually checked for optimal headspace. Our quality control system ensures they are dimensionally correct, and bores fall well within their individual tolerance ensuring superior accuracy.

Length: 16″
Weight: 29.0 ounces
Caliber: 5.56 NATO
Gas System: Carbine length
Twist Rate: 1:8 RH
Gas Block Journal: .750″
Gas Port Size: .073″
Muzzle Thread: 1/2-28
Material: 4150 CMV
Finish: Blacknitride+™ by H&M
Profile: Government
Barrel Extension: M4
11° Target Crown
100% American Made

The barrel is also dimpled for the gas block.


4140 Heat Treated Steel for the gas block and stainless for the gas tube. The finish on the block is a QPQ finish to exceed ASTM B117. It utilizes two set screws which are properly torqued and secured using ceramic thread locker for a secure mount. The gas tube is secured via American made coiled roll pins.

Forged from 7075-T6 aluminum, this stripped upper is machined to mil-spec M16/M4 specifications and features M4 feed ramps.

M4 Feedramps

7075-T6 aluminum

.250 takedown pin holes

Laser engraved T-marks

Type 3 Hard Coat Anodizing

Made in the U.S.A.

Mil-spec forward assist and dust cover installed using coiled roll pins and American hardware

Standard A2 Flash hider and crush washer for the muzzle device

Machined from a 6061-T6 extrusion, the JTF standard line of free float handguards will provide you with a lifetime of service. The 6061-T6 aluminum barrel nut does not need to be indexed for gas tube clearance. The anti-rotation tabs are designed to fit a standard forged upper receiver and will ensure that the rail will not shift if the mounting screws come loose. The patented ASAL mounting feature ensures that there is no forward movement of the handguard and keeps it from shifting due to tension on the mounting screws. Anti-rotation tabs may be a tight fit on forged uppers, and may require hand fitting on billet uppers.

6061-T6 Aluminum, Hard Coat Anodized

Includes 6061-T6 Aluminum Barrel Nut, Hard Coat Anodized

Top Rail Length: 15″

Inside Diameter: 1.250″

Weight with Mounting Hardware: 12.6 ounces

M-LOK® Mounting Points at 3:00, 6:00 and 9:00

100% American Made


M16 bolt carrier group is properly built, with no corners cut, test fired and 100 percent US made. With our lifetime guarantee, you can’t go wrong. For duty and hard use guns, we do however recommend BCGs with a C158 bolt.

8620 M16 style carrier

H&M Black Nitride finish

Properly heat treated

Final grind before plating

9310 5.56/.223 bolt

Heat treated

Shot peened

H&M Black Nitride finish


4140 Gas key

H&M Black Nitride Finish

Properly seated with Grade 8 fasteners

Properly staked to ensure reliability

4140 Cam Pin nitride treated for wear resistance

Tool Steel Extractor

Phosphate coated for reliable extraction

Extractor insert included

O-Ring included

Firing pin precision machined from 17-4 H-900 Stainless Steel

Standard AR15 Mil-Spec Charging Handle From from Billet 6061


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