Sale

AR-15 300 Blackout 7.5" Pistol Upper Complete Build Kits (Unassembled Black Barrel Upper) - Black

Shooters Gate
SKU:
AR-BDKT-U300-7.5HP8P-M7-BLK
$455.99 $246.19
(1 review)
Weight:
6.00 LBS
Current Stock:
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Key Features

Forged 7075-T6 Upper Black forged 7075-T6 Mil-Spec stripped upper receiver
7.5" 300 Blackout Barrel 7.5" 300 Blackout barrel (pistol gas)
Pistol Gas System Gas block .750 and pistol gas tube (300 Blackout barrels are 1:8 twist, pistol gas system)
M-LOK Free Float Handguard Black M-LOK free float handguard (7" handguard for 7.5" uppers)
USA-Made BCG & Charging Handle Bolt carrier group made in the USA and black standard charging handle
Lower Receiver Components Black lower parts kit, black pistol tube with foam, buffer spring, buffer, castle nut, end plate, extra ambi end plate
Bonus Tools & Gear Armor wrench, gun mat, one point sling

What You Still Need to Complete the Build

Stripped Lower Receiver You will still need an AR-15 Stripped Lower Receiver (FFL & Background Check required).
Magazine You will also need a magazine that is suitable for your desired caliber.

Package Contents

Black forged 7075-T6 Mil-Spec stripped upper receiver × 1
7.5" 300 Blackout barrel × 1
Black dust cover × 1
Black forward assist × 1
Gas block .750 × 1
Pistol gas tube × 1
A2 bird cage flash hider with crush washer × 1
Black M-LOK free float handguard (7" handguard for 7.5" uppers) × 1
Bolt carrier group, made in the USA × 1
Black standard charging handle × 1
Black lower parts kit × 1
Black pistol tube × 1
Black pistol tube foam × 1
Black castle nut × 1
Black end plate × 1
Extra ambi end plate × 1
Buffer spring × 1
Buffer × 1
Armor wrench × 1
Gun mat × 1
One point sling × 1

Model: AR-15 Unassembled Pistol Build Kit

Shooters Gate is now proud to offer the AR-15 Unassembled Pistol Build Kit. With this build kit, you will be able to have almost all of the necessary components to build your very own AR-15 Pistol.

Fully unassembled upper with all listed components
Bolt carrier group, made in the USA
300 Blackout barrels are 1:8 twist, pistol gas system

Note: Firearm laws and transfer requirements vary by state and locality. It is the buyer's responsibility to ensure compliance with all federal, state and local laws when purchasing and assembling firearm components.

Reviews

  • 5
    Awesome

    Posted by T Electrik on Nov 20th 2025

    Awesome Solid Micro Buffer Tube! Easy install and make my micro AR even more compact! I'll be buying more! If you have any questions just call ,I talked to James about a micro AR upper and he was beyond helpful!