Description
Dirty Bird 10.5″ Government Carbine 5.56 M-LOK Upper AssemblyThis Dirty Bird Industries Complete Upper features a Black Nitride 10.5″ Government Profile barrel chambered in 5.56 with a 1:7 twist. Built on a top-tier Forged Upper Receiver and finished with Dirty Bird’s 9.7″ SMRS M-LOK V2 or V3 Handguard available in several color options. No corners are cut when manufacturing these complete uppers. All barrels are dimpled and cold blued, use a .750 black nitride 4140 steel gas block and a carbine stainless steel gas tube. The gas block set screws feature knurled cone tops and are installed using blue locktite ensuring that no amount of firing will cause the set screws to come loose but they will still able to be removed for servicing if needed. This build will include one of Dirty Bird’s enhanced BCGs, which are individually High Pressure Tested and Magnetic Particle Inspected to ensure flawless operation in any AR-15 platform rifle or pistol.NEW: The Dirty Bird SMRS Handguard featured our new Rock Solid Patent Pending Anti-Slip / Anti-Lift attachment system. The clamp-on style of handguard attachment, utilized by many manufacturers is both secure and convenient but one problem has always been that clamping the handguard it tends to lift the front end of the handguard. The longer the handguard, the more drastic the effect. If you’ve ever had to bottom-out the front-sight post of a rail mounted BUIS in order to get the correct elevation, the issue is probably due to this “lift” phenomena.BarrelChambered in 5.56 (will also function with .223)10.5″ Government Profile w/ 1:7 TwistCarbineGas SystemBlack Nitride FinishMagnetic Particle InspectedBolt Carrier GroupDesigned for use with both 5.56 and .223Strategically relocated load bearing surfaces reduce carrier tilt/can’t during recoil, thus increasing reliability and longevityAdditional wall thickness in the gas exhaust port area for added strength and rigidityHigh Pressure Tested and Magnetic Particle InspectedHandguardPatented ASAL (Anti-Slip, Anti-Lift) mounting systemIncluded M-LOK QD Mount”Competition Cut” top rail with M-LOK slots machined into the shaved portion (V2) or continuous picatinny top rail (V3).Upper ReceiverPrecision Machined from Top Tier 7075-T6 Aluminum Forgings (forge marks may vary)Not all foged 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 anodizingM4 FeedrampsForge Markings may varyMay or may not have T-MarksCharging HandleMil-Spec Style6061-T6 BilletAluminumSmooth Operation and Positive Grip under Extreme ConditionsType 3 Class 2 Hard Coat AnodizingAvailable Handguard Colors:Black, Magpul FDE, Magpul OD Green, Midnight BronzeMade in the USA –Backed by Dirty Bird Industries’ Limited Lifetime Warranty
