The LWRC SIX8 SPR is an AR-pattern semi-automatic rifle chambered in 6.8mm SPC with a 16-inch barrel. It comes with a 9-inch modular rail, MOE+ grip, and a 30-round magazine. The rifle is finished in black. 
 

Key Specifications 

• Brand: LWRC 
• Model: SIX8 SPR 
• Caliber: 6.8mm SPC 
• Action: Semi Auto 
• Barrel Length: 16 inches 
• Capacity: 30 rounds 
• Color/Finish: Black 
   

Detailed Features 

• AR-pattern semi-automatic platform in 6.8mm Remington SPC 
• 16-inch barrel (16.1-inch per vendor specification) 
• 9-inch modular M6 rail for accessory attachment 
• MOE+ pistol grip 
• Ships with 30-round magazine

Owners of the LWRC SIX8 SPR tend to appreciate the combination of the 6.8mm SPC chambering with a familiar AR-pattern layout. The 16-inch barrel and modular rail make the rifle adaptable for a range of uses, and the MOE+ grip is a frequently cited ergonomic improvement over standard AR grips.

The 6.8mm SPC chambering draws a practical split: shooters who prioritize terminal performance on medium game find it a compelling option, while others note that 6.8 SPC ammunition is harder to source locally than .223/5.56. The 30-round capacity is seen as a strength.

LWRC's build quality is generally rated highly by owners of the SIX8 line. The common criticism is price; some buyers feel the premium over comparable AR-pattern rifles is hard to justify unless the 6.8mm chambering is specifically desired. Long-term owners report the piston system stays cleaner than traditional direct-impingement setups.