PSA 10.5" Pistol-Length 300AAC 1/8 PHOSPHATE12" Slant M-LOK Upper with BCG-CH
All Palmetto State Armory upper receivers
Palmetto State Armory
Overview
The PSA 10.5" Pistol-Length 300AAC Upper Receiver is a complete assembly designed for the AR-15 platform, featuring a 10.5-inch barrel optimized for the 300 Blackout caliber. With a 1:8 twist rate, this upper enhances stability and accuracy for a variety of bullet weights, while the pistol-length gas system ensures reliable cycling and a compact profile. This upper is commonly found in builds that prioritize maneuverability and performance in short-range engagements.
Specifications
PSA 10.5" Pistol-Length 300AAC 1/8 PHOSPHATE12" Slant M-LOK Upper with BCG-CH
Available Merchants
Price Alert
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Build history on GunPartPicker
Builders have added the PSA 10.5" Pistol-Length 300AAC 1/8 PHOSPHATE12" Slant M-LOK Upper with BCG-CH to their builds on GunPartPicker. Since April 2026, it ranks #1240 of the 2,069 upper receivers builders have added.
Updated · from real builds on GunPartPicker
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Frequently Built With
The part most often added in each category by the builds that include this one
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Radian Weapons AR-15 Raptor/talon L/s Combo Black Anodized
Fortis SHIFT Vertical Grip - M-LOK
Geissele Automatics B-G2S-E Geissele 2 Stage Enhanced Trigger
Bravo Company M16 Bolt Carrier Group Black
Radian Weapons AR-15 Enhanced Takedown Pin Set Black
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