Layout D - Upper Authority

Layout D (comb with C + load more)

Mil-Spec vs Commercial AR Parts: What Actually Matters

Close-up of an AR-15 bolt showing locking lugs and front face against a black background

Bolt Carrier Groups • Equipment

Bolt Carrier Group Parts: Complete Breakdown and...

Close-up of an AR-15 bolt carrier group showing the carrier body, gas key, and bolt face against a black background

How the Bolt Carrier Group Works: A Clear Breakdown

Close-up of an AR-15 receiver area showing the upper and lower receiver, trigger, magazine well, and optic mounted on the rail

How an AR-15 Works: Complete Cycling Process Explained

Blueprint-style diagram of an AR-15 rifle showing internal and external components

AR-15 Parts List: Complete Breakdown of Every Component

Close-up view of an AR-15 lower receiver showing the trigger, safety selector, and magazine well

What Is a Lower Receiver? Function, Parts, and Legal...