PSA 20" Rifle Length 5.56 NATO 1/7 Nitride 15" Lightweight Hex MLOK Upper - W/ BCG and CH
Click to see full view
Palmetto State Armory
Overview
The PSA 20" Rifle Length 5.56 NATO upper receiver is a complete assembly designed for AR-15 builds, featuring a 20-inch barrel with a 1:7 twist rate that stabilizes a wide range of bullet weights for enhanced accuracy. Its rifle-length gas system provides smoother cycling and reduced recoil, making it ideal for precision shooting and long-range engagements. This upper is commonly found in builds focused on accuracy and versatility, catering to both competitive shooters and enthusiasts alike.
Specifications
PSA 20" Rifle Length 5.56 NATO 1/7 Nitride 15" Lightweight Hex MLOK Upper - W/ BCG and CH
Available Merchants
Price Alert
Log in to set a price alert on this product.
No Available merchants at this time.
Build history on GunPartPicker
Builders on GunPartPicker first added the PSA 20" Rifle Length 5.56 NATO 1/7 Nitride 15" Lightweight Hex MLOK Upper - W/ BCG and CH to a build in July 2026.
Updated · from real builds on GunPartPicker
Not sure which upper receiver to pick?
We ranked every upper receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: Most Popular AR-15 Upper Receivers →Check it against the live catalog:
Frequently Built With
Popular alongside upper receivers on GunPartPicker
Aero Precision M4E1 Complete Lower Receiver W/MOE SL Grip & SL-S Carbine Stock
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Bravo Company M16 Bolt Carrier Group Black
Magpul AFG-2 Angled Fore Grip - Black
Magpul AR-15 MOE Stock Collapsible Mil-Spec Black
No reviews yet. Be the first to review this product!