AR-15 300 AAC 5.5″ MICRO PISTOL KIT / 1:7 / MICRO BUFFER / 4″ M-LOK

AR-15 300 AAC 5.5″ MICRO PISTOL KIT / 1:7 / MICRO BUFFER / 4″ M-LOK

AR-15 300 AAC 5.5″ MICRO PISTOL KIT / 1:7 / MICRO BUFFER / 4″ M-LOK. This kit contains all components to complete your AR-15 project. The kit comes WITHOUT 80% stripped lower receiver. All options and modifications to your kit are available on top of this page. All components are Mil Spec and made in the USA.  The receiver is a flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper. The MICRO 5.5” 300aac barrel is made from 4150 Chrome Moly steel, has 1:7 twist rate & MICRO gas system. 

Barrel: 5.5” Heavy Barrel, 4150 cmv

Chamber: .300 AAC 

Twist: 1 in 7

Thread: 5/8-24

.750” Gas Block Diameter

Micro Gas System

M4 flat top upper receiver

Forward Assist

Ejection Port Cover

Mini Shroud

4" slim profile Mlok free float 

M16 Bolt Carrier Group

AR-15 Charging Handle

AR-15 Mil Spec Lower Parts Kit

AR15 micro pistol buffer tube with AR15 buffer and spring

Specifications:

• Barrel: 5.5″ 300Blackout Barrel Chrome Moly
• Twist Rate: 1:7
• Feed Ramps: M4
• BCG: Case Hardened 8620 Steel Nitride Coated, M16, Mil-Spec/MP Tested
• Gas Block: Steel .750 Low Profile
• Gas Tube: Stainless Micro-Length
• Muzzle Device: Thread Protector
• Rail: 4″ M-LOK Rail
• Upper Receiver: Forged Upper Receiver
• Upper Components: Mil-Spec Forward Assist, Mil-Spec Dust Cover, and Brass Deflector
• Pistol receiver extension
• Micro buffer for AR15 platform
• Carbine spring
• Castle nut
• End plate
• Complete AR-15 Lower Parts Kit ready for installation in your lower receiver

Please Note: Comes unassembled. Images may not be an exact representation of the product. Design of rail may differ based on stock availability, the same excellent quality.