The MMSSA Logo has been Laser Engraved on the lower receiver. The M4-22 PRO is a premium .22 caliber semi-automatic tactical rimfire rifle with aluminum upper and lower receivers and all the features of a true M4. The M4-22 PRO is largely mil-spec compatible and will accept most AR15 stocks, handguards and sights.  The M4-22 has the look, feel and controls of a true M4 and is a perfect platform for training applications or backyard plinking.  

Features and Specifications

• Elftmann Match Trigger - Factory Installed
• MMSSA Logo Laser Engraved Lower
• Fluted 16” 4150 Solid Steel Barrel with Parkerized Finish
• 2 Magazines - 25, 15 or 10 round available
• Adjustable Trigger Pull from 4lbs to 2 3/4lbs without removing from lower
• Composite Free Float Handguard
• Nickel Plated Bolt
• Gen2 Grip
• Semi-Automatic
• Aluminum Upper and Lower Receiver
• Functional Forward Assist
• Bolt Catch
• Charging Handle
• Adjustable Flip Up Sights
• Shell Deflector
• Ejection Port Cover
• Adjustable Stock
• 1/2 x 28 Threaded A2 Birdcage
• Popular AR Platform
• Easy Push Pin Disassembly
• Full Length Top Picatinny Rail
• 2-Position, Receiver Mounted Safety Lever (Serial Numbers over 20K are milspec)
• 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