|Caliber:||223 Remington (5.56×45mm NATO)|
|Rate of twist:||1 in 9"|
|Magazine type:||Detachable Box|
Short stroke piston design and a lightweight, free floating, two piece aluminum handguard with user located picatinny rails. It will also include an innovative front handguard cap to keep debris out of the internals of the handguards while providing strength and stability to the assembly. The MPAR 556 Rifle will also contain a side folder 6 – position polymer buttstock, locked bolt action, and a side charging-handle with forward-assist. The MPAR 556 Rifle is compatible with AR15 / M16 magazines.