300 Blackout AR 15 Rifle Kit – 16″ Parkerized Heavy Barrel, 1:8 Twist Rate with 15″ M-Lok Handguard

Please note: We strive to provide the most accurate photographs of our product wherever possible. Due to availability limitations and supply chain constraints, slight variations of the handguard of this upper assembly may occur in the aesthetics of the skeletonizations in between the M-Lok sections.

For the longrange shooter who demands a do-it-all AR with a .30-cal. This 300 Blackout build kit provides a lightweight rifle that can shoot suppressed or un-suppressed with supers and subs all day (and night, for the hogs). With a 16″ barrel forged from 4150 CMV with a 1:8 twist providing optimal velocity and stability for all grains and loads, this rifle kit yields MOA accuracy in any configuration.

What’s Included

This kit is not a firearm. It includes an assembled upper receiver, bolt carrier group, lower parts kit, and buffer assembly with buttstock.

Here’s the beginner’s guide to 80% lowers.

300 BLK Rifle Kit Specs

Barreled uppers are assembled in-house before shipment.

Barrel

• Chamber: .300 AAC Blackout
• Contour: Heavy
• Length: 16”
• Twist Rate: 1:8
• Gas System: Pistol
• Gas Port: 0.750”
• Gas Hole Dia.: 0.070”
• Muzzle Threads: 5/8×24
• Feed Ramps: M4
• Material: 4150 CMV
• Finish: Parkerized
• Process: Button Rifled
• Lining: None
• Extension: M4
• Muzzle: A2 “Birdcage” Flash Hider

Handguard

• Attachment System: 15″ M-Lok
• Finish: Type III Hardcoat Anodized (Mil-Spec)
• Top Rail: M1913 Picatinny
• Material: Billet 6061-T6 Aluminum
• Attachment: Barrel Nut 

Upper Receiver

• Profile: M4 Flattop
• Material: Forged 7075-T6 Aluminum
• Finish: Type III Hardcoat Anodized (Mil-Spec)

Bolt Carrier Group

• Profile: M16/Full-Auto
• Steel: 9310 Tool, HPT/MPI-tested
• Exterior: Black Nitride
• Interior: Chrome-Lined
• Gas Key: Staked, Chrome-lined
• Charging Handle: Included

Lower Receiver Parts

• Buffer System: Mil-spec, Carbine
• Buttstock: Mil-spec, M4-type
• Parts Kit: Mil-spec, single-stage

Lower receiver sold separately. 

WARNING: Handling firearms parts and certain firearm accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov 

Shipping Restrictions 

We cannot ship certain parts and accessories to states that prohibit the sale or ownership of such components, like California, New York, and others. Before ordering, see our shipping restrictions for a list of all prohibited states and locales. We try our best to keep our shipping restrictions current, but state laws change almost daily. It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. 

ghostgunkitforsale.com only ships within the United States. Federal law prevents international shipments of our products.