1. Home
  2. New Products
  3. Lantac USC Billet AR15 Upper Receiver - Side Charging

Lantac USC Billet AR15 Upper Receiver - Side Charging

 Review This Item
$178.28
Stripped - Excludes Port Door & Forward Assist Button
Item Id: LA00270
In Stock

The USC is a precision machined upper with an ultra smooth proprietary bore, with a roughness average in micro inches of 16, as opposed to standard bored or milled uppers that are 32-63, or higher. This reduces bolt carrier friction and creates a much smoother operation. Barrel nut threads, bore and barrel extension surfaces are all machined in one operation so that they are perfectly concentric and perpendicular to the barrel and fixing assembly. The USC features strengthened sidewalls for maximum rigidity and reduced barrel deflection. Ejection port cover and forward assist are not included.

The cam pin recess has been carefully designed with a smooth surface that flows into the main reciprocation channel. This allows Lantac's specially designed radial, domed head cam pin to move with the minimum of wear against these internal surfaces. 
With its blended cam recess the USC upper is machined from Billet 7075-T6 certified aluminum and milspec, type 3, class 2, deep black, hardcoat anodized.

Package includes the CP-R360 domed head ultra smooth cam pin. The patent pending Smoothcam system features a domed head, low friction cam pin and special upper receiver that offer ultra smooth operation. The CP-R360 cam pin has no moving parts to break or lock up and is machined from 17-4 PH stainless steel and hardened to H900 (45RC approx). Its head is polished for a super smooth finish. The cam pin's circular head has a single flat face machined into it at the front so that it can be inserted into any bolt carrier without having to remove the gas key.

Two further flats are machined at 90 degrees to the front face that assist in reducing internal wear to the cam channel. The unique domed head allows the cam pin to operate in a completely different position to a traditional pin, with the radius of the head curving away from the receivers internal surface, rather than forming a hard or sharp edge on its upper corner that causes wear. Finished in its natural hardened state, copper/brass color
. Used in conjunction with Lantac's USC upper, the Smoothcam gives you a complete, ultra smooth, low friction, minimum wear system. For complete and current information on this item please see the manufacturer's website.

Specifications:
  • Material: billet 7075-T6 aluminum
  • Finish: milspec type 3, class 2, deep black, hardcoat anodize
  • Super smooth bore
  • Blended smoothcam system
  • M4 feed ramps
  • Includes CP-R360 domed head cam pin
  • Weight: 11.3 oz / 320 g
100% Satisfaction Money Back GuaranteeSatisfaction guaranteed
We are so confident that you will be 100% satisfied with this product that we have backed your purchase with our 30 day money back guarantee.


Made in USA Made in USA

Similar items

2A Armament Balios Lite Billet Lightweight AR15 Upper Receiver
$223.00
Stripped - Excludes Port Door & Forward Assist Button
American Defense Manufacturing UIC Billet AR15 Upper Receiver
$224.95
Assembled - Includes Port Door & Forward Assist Button
Battle Arms Development Gen 2 Lightweight AR15 Upper Receiver - Billet
$239.00
Stripped - Excludes Port Door & Forward Assist Button
Cross Machine Tool AR15 Billet Slick Side Upper Receiver - UPUR2
$135.00
Stripped - Capable Of Accepting A Port Door - No Forward Assist - Has A Shell Deflector
Cross Machine Tool AR15 Billet Slick Side Upper Receiver - UPUR3
$115.00
Stripped - Not Capable Of Accepting A Port Door - No Forward Assist - No Shell Deflector - 458 SOCOM & 9mm Compatible
Cross Machine Tool AR15 Billet Slick Side Upper Receiver - UPUR4
$124.00
Stripped - Capable Of Accepting A Port Door - No Forward Assist - No Shell Deflector
Lantac UAR AR15 Billet Upper Receiver
$241.95
Stripped - Excludes Port Door & Forward Assist Button
Lantac USC Billet AR15 Upper Receiver - Side Charging
$178.28
Stripped - Excludes Port Door & Forward Assist Button
Umbrella Corporation AR15 Forged Upper Receiver
$165.00
Assembled - Includes Port Door & Forward Assist Button
Cross Machine Tool AR15 Billet Upper Receiver - UPUR1
$187.00
Stripped - Capable Of Accepting A Port Door - Forward Assist Compatible - Has A Shell Deflector

Recently Viewed Items