The UAR is precision machined from billet 7075-T6 certified aluminum with a special burnished bore that gives a compacted internal surface, resulting in a much smoother surface finish. 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.
For a complete, ultra smooth, low friction, minimum wear system and to maximize its benefits; Lantac's Smoothcam Pin is included and intended to be used in conjunction with this upper. Ejection port cover and forward assist are not included.
- Precision CNC machined from billet 7075-T6 certified aluminum
- Type 3, class 2, deep black, hardcoat anodized black
- Blended smoothcam recess
- Lantac Smoothcam Pin Included