LWRCI SIX8 UCIW 6.8 SPC II Piston SBR, 8.5-inch CHF Nitride Barrel, Ambi Controls, Earth-Tone Finish
This LWRCI SIX8 UCIW stands out as a compact, 6.8 SPC II short-stroke piston rifle built on proprietary SIX8 receivers. It features an 8.5-inch cold hammer-forged 41V45 CMV nitride barrel with a heavy profile, ambidextrous controls, and a nickel-boron coated bolt carrier. The rifle is finished in an earth-tone color and arrives with LWRCI Skirmish flip-up sights, a folding vertical foregrip, and three SIX8-pattern magazines. Condition is excellent.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific condition notes: Minor scratches and small blemishes are present.
What’s Included
- Original case
- LWRCI Skirmish flip-up front and rear sights (installed)
- LWRCI folding vertical foregrip (installed)
- 2x 30-round SIX8-pattern polymer magazines
- 1x 20-round SIX8-pattern polymer magazine
The SIX8 platform uses proprietary receivers with a widened magwell and enlarged ejection port engineered specifically for the 6.8 SPC cartridge. It runs dedicated 6.8 PMAG-compatible magazines and provides ambidextrous operation with an ambidextrous mag release, safety selector, and charging handle for easy control from either side.
Its 8.5-inch barrel is made from 41V45 CMV steel, cold hammer-forged for durability, nitride-treated for corrosion resistance, and built with a heavy profile. A short-stroke gas piston system with a one-piece gas block drives the action, while a nickel-boron coated bolt carrier enhances smooth cycling and cleanup. The barrel is threaded 5/8x24 and fitted with a four-prong flash suppressor.
The rifle’s short free-float aluminum handguard features elongated ventilation ports, and a continuous T-marked Picatinny top rail provides mounting space across the receiver and handguard. LWRCI Skirmish flip-up sights are installed, and a LWRCI folding vertical foregrip adds a compact forward control option.
Ergonomics and handling are supported by an adjustable ultra-compact stock and a textured LWRC-branded pistol grip. The earth-tone receiver finish, left magwell SIX8 gear medallion, and adhesive magwell data label complete the build. An aftermarket trigger with a G-marked trigger shoe (non-standard) is installed. Made in the United States.