Dirty Bird 16 Government Midlength 5.56 M-LOK Left-Handed Complete Upper

Dirty Bird 16a ^2 Government Midlength 5.56 M-LOK Left-Handed Complete UpperLefties rejoice, the Dirty Bird 16a ^2 Government Midlength 5.56 M-LOK Left-Handed Complete Upper was built just for you. This is a high quality mil-spec compatible upper assembly that will provide better handling and ergonomics for left-handed shooters. Plus you can be confident that you're getting an upper assembled by competent professionals using top notch, brand name components.The Left Handed A3 Upper Receiver is manufactured by Stag Arms, T-Marked and Hard Coat Anodized. This is actually a forged upper receiver, so you can be confident that it will match up nicely with any mil-spec lower from a variety of manufacturers. It also features a functional forward assist and dust cover.The top-tier 16a ^2 Black Nitride Mid-Length barrel is chambered in 5.56 NATO (can shoot both 5.56 and .223) and features a 1:7 twist. The smooth shooting mid-length gas system uses a Stainless Steel Gas Tube and 4140 Steel Gas Block with a Black Nitride finish.**NOW INCLUDING BCG and Charging HandleMade in the USA - Backed by Dirty Bird Industries' Limited Lifetime WarrantyBarrelChambered in 5.56 (will also function with .223)16a ^2" Government Profile w/ 1:7 TwistMid-Length Gas SystemBlack Nitride FinishHigh Pressure Tested and Magnetic Particle InspectedSub-MOA GuaranteeHandguardPatented ASAL (Anti-Slip, Anti-Lift) mounting system"Competition Cut" top railUpper 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-MarksBolt Carrier GroupFinish: Salt Black NitrideBolt: 9310 Alloy Steel (High Hardness)Carrier: 8620 Aircraft Grade SteelExtractor: Shot Peened and Case Hardened D2 Tool SteelFiring Pin: Mil-spec 8740 steel with hard chrome finishGas Key: Mil-Spec w/ properly staked Grade-8 screws & Permatex No. 3 sealedCam Pin: 8620 Steel w/ Black Nitride Finish