PSA 7.5" 300AAC Blackout 1/7 Nitride 9" Lightweight M-LOK Upper With BCG & CH
Click to see full view
Palmetto State Armory
Overview
The PSA 7.5" 300AAC Blackout upper receiver is a complete assembly designed specifically for the AR-15 platform, featuring a compact 7.5-inch barrel optimized for the 300 Blackout caliber. With a twist rate of 1:7, this upper is capable of stabilizing a wide range of bullet weights, making it versatile for various shooting applications. This upper commonly appears in builds focused on the 300 Blackout caliber, ideal for short-range engagements and suppressed shooting.
Specifications
PSA 7.5" 300AAC Blackout 1/7 Nitride 9" Lightweight M-LOK Upper With BCG & 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 7.5" 300AAC Blackout 1/7 Nitride 9" Lightweight M-LOK Upper With BCG & CH to a build in January 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
The part most often added in each category by the 9 builds that include this one
Blem PSA Complete Lower 300BO, JAKL Classic EPT, Black
Hiperfire AR-15 Power Drop-In 2lb Trigger Rose Gold
FAXON Chameleon 5.56 Complete Nitride Bolt Carrier Group - FF556BCGCNITRIDE-NCR
Magpul AFG-2 Angled Fore Grip - Black
Maxim Defense CQB Gen 7 Standard Buffer Adjustable AR-15 Stock, Black - MXM-47617
Vortex Optics AMG UH-1 Gen II Holographic Sight
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
No reviews yet. Be the first to review this product!