Caliber This Pistol Upper Build Kit Is Chambered In .45 ACP. It's Such An Iconic Round, And Is Most Commonly Associated With Timeless Classics Like The 1911, Or The Tommy Gun. There's A Reason The .45 ACP Round Has Withstood The Test Of Time, And That's Why It Has Also Been Adopted In More Recent Years By The AR Platform. With This Upper Build Kit, You Can Pack The Iconic .45 ACP Punch In A Nice Compact Package All While Staying On That Familiar AR Platform.
Upper: This Build Features The "Vertex" Pistol AR-15 Caliber Billet Upper Receiver. The Vertex Upper Is Machined Out Of A Single Block Of 7075 T6 Billet Aluminum In Order To Create Its Intricate Lines And Angles And Finished With A Hard Coat Black Anodization. The Vertex Upper Was Designed To Be Used With Pistol Calibers Specifically And As A Result Doesn't Have A Dust Door Or Forward Assist. This Was Done To Save Weight As Well Improve Functionality And Reliability By Focusing On A Simple Design That Has Fewer Moving Parts And Therefore Fewer Parts That Can Break, All The While Not Compromising On Strength And Durability. This Upper Will Fit On A Traditional Mil-spec Lower Receiver Or A Pistol Caliber Specific Lower Receiver.
Barrel: This Upper Features A 4.5" .45ACP Barrel From ELD Performance. Made From 4150 CMV With A QPQ Nitride Finish, This Barrel Has A Thread Pitch Of .578x28 And A Twist Rate Of 1-16.
Handguard: This Upper Features A Premium 4" Gauntlet Arms ACE Series M-Lok Handguard. This Handguard Is Made From The Highest Grade 6061-T6 Aluminum And Is Reinforced With Class 2 Type III Black Hard Anodizing. With M-Lok Cutouts On The Sides, This USA Made Handguard Will Allow You To Mount A Variety Of Accessories.
