Dirty Bird 7.5" 5.56 M-LOK Pistol Kit w/ SBA4

This Dirty Bird 7.5″ 5.56 M-LOK Pistol Kit w/ SBA4 is everything you need to add to your lower receiver to have a complete rifle.

Dirty Bird 7.5″ Pistol 556 M-LOK Complete Upper

Barrel

• Chambered in 5.56 (will also function with .223)
• 7.5″ Heavy Profile w/ 1:7 Twist
• Mid-Length Gas System
• Black Nitride Finish
• High Pressure Tested, Magnetic Particle Inspected and Test Fired
• Recessed Flash Can

Handguard

• Tough
  • Machined from aircraft grade 6061-T6 aluminum extrusions.
  • Anti-rotation tabs.
• Versatile
  • M-LOK attachment slots on all sides (except top)
  • 1913 Picatinny top rail with shaved and beveled center section.
  • Raised QD attachment points at the 3 and 9 o’clock positions.

Upper Receiver

• Precision Machined from Top Tier 7075-T6 Aluminum Forgings (forge marks may vary)
• M4 Feedramps
• Laser etched T-marks

NBS Enhanced Mil-Spec Charging Handle

Dirty Bird Industries Enhanced Bolt Carrier Group .223/5.56

• Strategically relocated load bearing surfaces reduce carrier tilt/can’t during recoil, thus increasing reliability and longevity.
• Additional wall thickness in the gas exhaust port area for added strength and rigidity.

The 9310 Bolt is machined to mil-spec dimensions and then the external surfaces including the lugs are CNC ground after the heat treating process to ensure a very precise fit. The bolts themselves feature the same Black Nitride finish as the carrier and are High Pressure (HP) Tested and Magnetic Partical Inspected (MPI) in accordance with Mil-STD-1816 specifications.

SB Tactical SBA4 Pistol Stabilizing Brace

• Designed after the SBM4™
• 5-position adjustable
• Includes 7075 mil-spec carbine receiver extension
• Integral, ambidextrous QD sling socket
• ATF compliant, US veteran designed and proudly made in the USA
• Product includes:  brace, mil-spec carbine receiver extension, adjustable nylon strap

OEM Mil-Spec AR-15 Lower Parts Kit