Tippmann Arms M4 - RCRThe M4-22 RCR is our competition model that features our Dual Firing Pin Bolt, Ultra-Lite Barrel (weighs 8.75oz), and Ambi Forward Charging Handle System and is a premium .22 caliber semi-automatic rimfire rifle with aluminum upper and lower receivers and all the features of a true M4. The M4-22 RCR is largely mil-spec compatible and will accept most AR15 stocks, handguards, and sights. Features and Specifications*16" Ultra-Lite Barrel - 7" Solid Steel Barrel with a pinned and welded Aluminum Extension Tube*Nickel Plated Bolt with Dual Firing Pins*Aluminum Ambi Forward Charging Handle System*Aluminum Rear Ambi Charging Handle*Composite Free Float Handguard*Gen2 Grip*Semi-Automatic*Aluminum Upper and Lower Receiver*25 RND Magazine*Functional Forward Assist *Bolt Catch*Adjustable Flip-Up Sights*Shell Deflector*4 1/2 Pound Trigger Pull*Ejection Port Cover*Adjustable Stock*Popular AR Platform*Easy Push Pin Disassembly*Full Length Top Picatinny Rail*2-Position, Receiver Mounted Safety Lever*Ambidextrous Sling Adapter Plate*Mil-Spec FCG *Allows For Drop in Trigger Assemblies*Standard "bicycle lock" Storage Safety*Compatible With Most Standard AR15 Components and Accessories *Owner's Manual