Description

This build kit DOES NOT come assembled.

This Complete 7.5 inch M-LOK upper receiver build kit comes with a 9.25 inch free float handguard and includes only the best Mil-Spec components for your AR15 build. The core components of this kit are a barrel that’s machined from chrome moly vanadium 4150 steel, the lightweight M-LOK handguard that is machined from 6000 aeries aluminum, an M4 upper that is machined from 7075 T6 forgings, and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean.

As a “do it yourselfers" or DIY enthusiast, you may prefer an AR-15 build kit over a complete upper. Building an AR-15 from a kit allows for a greater level of customization and personalization of the final product. DIYers can choose from a variety of components, such as barrels, handguards, and triggers, to create a rifle that meets their specific needs and preferences. Additionally, building an AR-15 from a kit can be a rewarding and educational experience, as it allows you to gain a deeper understanding of how their firearm functions and how to properly maintain it. Building an AR-15 from a kit may often be more cost-effective than purchasing a complete upper, as it allows DIYers to select only the components they need, rather than paying for pre-assembled parts they may not want or need.

We also carry this Upper Receiver Kit assembled here.

Barrel:

Length - 7.5"
Material - 4150 Chrome Moly Vanadium
11-Degree Target Crown - Further improve accuracy
Profile - DRP
Finish - QPQ Corrosion Resistant
Gas System Length - Pistol
Gas Block Journal - .750" Gas Block Journal
Twist Rate - 1/7 Twist
Muzzle - 1/2x28 Threaded
Weight - 17 oz
Fitted with Flash Can

Bolt Carrier Group:

Enhanced 9310 Steel (Bolt)
8620 Tool Steel (Carrier)
Bolt is shot Peened and MPI
All BCG components pre polished before being processed and then post polished for an incredible shine

Upper Receiver:

Machined from a Mil-Spec 7075 T6 Forging
Hard Coat Anodized per Mil-A-8625F, Type III
M4 Feed ramps

Handguard:

9.25" Lightweight - Free Float M-LOK

Charging Handle:

Forged 7075 Aluminum construction
Mil-Spec Type-III Hardcoat Anodized finish

SKU: UBK-RTB75S55675RFC

Coupons for Right To Bear store

BARRELUP
Expiration date Unknown Report
EARTH26
Expiration date Unknown Report
SPRING26
Expiration date Unknown Report

Live Inventory Search

Want to see your products here? Click this link.

Compare prices for UBK-RTB75S55675RFC - Upper Build Kit 7.5" 5.56 Pistol - Black FLASH CAN 9.25" M-LOK With BCG & CH from all vendors

Store Price Shipping rate Report Show more
$313.95
no info