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
- 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
- Machined from aircraft grade 6061-T6 aluminum extrusions.
- Anti-rotation tabs.
- 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.
- 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