Dirty Bird 7.5″ Pistol 556 M-LOK Complete Upper
This Dirty Bird Industries Complete Upper features a Black Nitride 7.5″” Sub-MOA Heavy Profile barrel chambered in 5.56 with a 1:7 twist. Built on a top-tier t-marked Forged Upper Receiver and finished with Dirty Bird’s 9.5″ SMRS M-LOK V2 Handguard available in several color options. No corners are cut when manufacturing these complete uppers. All barrels are dimpled and cold blued, use a black nitride 4140 steel gas block and a stainless steel gas tube. The gas block set screws feature knurled cone tops and are installed using blue locktite ensuring that no amount of vibration will cause the set screws to come loose but they will still be removable for servicing if needed.
Made in the USA – Backed by Dirty Bird Industries’ Limited Lifetime Warranty
Barrel
- Chambered in 5.56 (will also function with .223)
- 7.5″ Heavy Profile w/ 1:7 Twist
- Pistol Gas System
- Black Nitride Finish
- High Pressure Tested, Magnetic Particle Inspected and Test Fired
- Recessed Flash Can
Bolt Carrier Group
- Designed for use with both 5.56 and .223
- 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
- High Pressure Tested and Magnetic Particle Inspected
Handguard
- Patented ASAL (Anti-Slip, Anti-Lift) mounting system
- Included M-LOK QD Mount
- “Competition Cut” top rail
Upper Receiver
- Precision Machined from Top Tier 7075-T6 Aluminum Forgings (forge marks may vary)
- Not all forged uppers are created equal and we only use the best for our uppers meaning they will be free from excessive pitting, machined to spec and finished with quality (not purple or chalky) hard coat anodizing
- M4 Feedramps
- Laser etched T-marks
Charging Handle
- Mil-Spec Style
- 6061-T6 Billet Aluminum
- Smooth Operation and Positive Grip under Extreme Conditions
- Type 3 Class 2 Hard Coat Anodizing
Available Handguard Colors: Black, Magpul™ FDE, Magpul™ OD Green, Midnight Bronze
| Weight | 0.0000 oz |
|---|---|
| Dimensions | N/A |
| Color | Black, FDE, Midnight Bronze, OD Green |
| Barrel Finish | Nitride / Melonite |
| Barrel Profile | Heavy |
| Gas System Length | Pistol |
| Barrel Chamber | 5.56 NATO |
| BCG / Charging Handle | Not Included |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
- Reviews
- Questions
US
Great upper, great value; excellent customer service
Very good quality upper. The handguard is excellent. Changed the muzzle device and removing the guard was very easy, ingenious design.
USQuality
Thing thing functions like a dream. You know how inaccurate and loud a 7.5 inch barrel is, but this thing makes plates sing at 150 yards easily. Well with some drop. The flash can does its job well. Only complaint I'd have is the can is wide enough that you can't use the mlok at the end, but I solved that with a Dremel stone to the mlok nuts without damaging the hand guard. Can't scratch this thing either. Cycles beautifully. It also has about the tightest tolerance on the takedown pins you could ever want. No need for spacer washers on the pivot pin or rubber boots under the rear takedown. Good deal for what you get. I paired it with an aero nitride bcg and a strike industry ambi charge handle.
US
Dirty bird
Love it ... super quick and exactly what I wanted
USawesome product
This was exactly what I was looking for and matches my OD green lower exactly
USAwesome product
Very pleased with this upper nice quality with a fair price
