Proprietary upper and lower receiver. Magpul high reliability 30 round magazine with high-visibility follower. Enlarged ejection port allows unhindered ejection of the 6.8 castings. LWRCI Skirmish Back-Up Iron Sights. Cold hammer forged barrel. 1:10 inch twist rate. 5/8x24 threads per inch. Twelve inch user configurable rail. LWRCI Compact Stock with integral sling attachment point. Short stroke piston operation. LWRCI Enhanced Fire Control Group. LWRCI High Efficiency Flash Hider. LWRCI Ambidextrous Charging Handle. Magpul MOE+ Grip. 
SIX8-A5 6.8mm SPC 16.1 Inch Barrel Flash Hider 5/8x24TPI LWRCI Compact Stock OD Green 30 Round 
Mfg Item Num: SIX8A5RODG16 
Capacity: 30 
Caliber-Gauge: 6.8 REM. SPL. 
Item Code: SIX8A5RODG16 
Barrel Length Range: 16.1 
Finish: OD Green