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PSC-21™ Upper Receiver Assembly

   Small Frame

Ever since we debuted our dual-charge system at SHOT Show 2011, it's been a hit. Keeping with our new receiver styling, the PSC-21™ is the newest iteration of our small-frame dual-charge upper compatible with any Mil-spec pattern lower. This design integrates the popular side-charge system of the LRI-20™ and SCI-20™ platforms into a machined-from-billet receiver that doesn't sacrifice any of the functionality or compatibility of a standard Mil-spec upper. This makes the PSC-21™ a best-of-both-worlds option for any application: action shooting, precision rifle, hunting or duty/defense.

This upper receiver kit brings the PSC-21™ to the home builder and includes:

This kit assembles like a standard forged upper with the simple addition of the side-charge handle, which slips into place as easily as a standard T-handle. If you can build an upper, you can build your own PSC-21™ and tap the potential yourself.

Note: The PSC-21™ is compatible with any lower receiver that will accept a standard Mil-spec upper receiver, but JP cannot guarantee function with any specific lower (other than our own). It is the end user's responsibility to verify final compatibility.

Thermo-Fit™ Barrel Installation

The PSC-21™ was deliberately manufactured with a precise undersized barrel extension bore, requiring use of our proprietary Thermo-Fit™ barrel installation process. Installed this way, the barrel attains a virtually unbreakable heat meld to the receiver, vastly increasing the accuracy and precision of the rifle.

You can view our video on the Thermo-Fit™ installation here.

Notice on Fitment

While we can ensure fitment on matched receiver sets, slight variations in manufacturing tolerances, metal finishing and coatings make final fitment between one of our upper receivers and your own impossible to guarantee.

Product Instructions

Bolt Carrier:

Bolt Assembly:

Top Charge Handle:

Side Charge Handle:

Price: $979.00