This Dirty Bird 20″ M16A1 Enhanced 5.56 Retro Rifle Kit is everything you need to outfit your lower receiver, so that you can have a complete rifle.
Dirty Bird 20″ M16A1 Enhanced 5.56 Retro Complete Upper
20″ 5.56 Lightweight Contour 1:9 Rifle Length Barrel w/ FSB
- Chambered in 5.56
- 1:9 Twist Rate
- Button Rifled
- A2 Front Sight Base w/ Front Sight Post Installed
M16A1 Assembled Upper Receiver
- 7075-T6 Forged Aluminum
- Factory Installed Teardop Forward Assist & Dust Cover
- Factory Installed Dual Aperture Rear Sight
- Integrated M4 Feed Ramps
- Fully Compatible with any Mil-Spec Lower Receiver
A1 Triangle Handguard
A1 3 Prong Compensator
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.
KAK AR-15 A2 Buttstock Kit – Black
- Polymer A2 Stock w/ Storage Compartment
- A2 Extension Tube
- A2 Receiver Extension / Buffer Tube
- Chrome Silicon A2 Rifle Buffer Spring
- A2 Spacer
- Assembly Screw
OEM Mil-Spec AR-15 Lower Parts Kit