Link: 10.5" 300 BLACKOUT BARRELED UPPER - SEEKINS MCSR V2 KEYMOD 12"


Retail: $469.99
Sale: $349.99

Upper Receiver
A4 Upper Receiver
M4 Feed Ramps
Black Hardcoat Anodized Mil-Std-171 Type III
Precision Machined to Mil-Spec Tolerances
Forged From High-Grade 7075 T6 Aluminum
Mil-Spec Forward Assist and Ejection Door

Barrel
10.5" 300 AAC Blackout 1x8 4150 CrMoV Melonite Nitride Treated Steel

Gas System
Pistol Stainless Steel Gas Tube
.750 Low Profile Steel Melonite Gas Block

Hand Guard
Seekins Precision MCSR V2 12" KeyMOD Rail

Muzzle Device
Flash Can

Product Code: MAS-103B1-SPM2K-12


The Bolt Carrier Group and Charging Handle are not included. Please see "Related Items" below or go to our Bolt Carrier Group and Charging Handle Section to choose one.
All barreled uppers are head spaced and test fired to ensure function.
ALL LAWS APPLY. IT IS THE RESPONSIBILITY OF THE BUYER TO UNDERSTAND ALL LAWS REGARDING PURCHASE AND OWNERSHIP OF THIS UPPER. WE STRONGLY URGE YOU TO CONTACT YOUR LOCAL FFL AND/OR THE ATF WITH ANY AND ALL QUESTIONS TO MAKE SURE YOU UNDERSTAND THE LAW BEFORE PURCHASING THIS ITEM.