K8MAGUR25: 24" .25 WSSM Upper Conversion Unit"

Upper conversion unit for your complete AR-15 lower receiver designed for .25 Winchester Super Short Magnum.

Upper receiver assembly with 24" bull barrel.  Includes flat-top upper receiver, charging handle, proprietary bolt carrier assembly, 24" broach-cut Ultramatch barrel made from stainless steel, free floating aluminum handguard, picatinny gas block and a crowned muzzle.

Fully assembled headspaced and test-fired.  Includes one 6-round magazine.  The ejection port cover is not included because the port is enlarged to accommodate the large WSSM casings.

• MANUFACTURERS NOTE: The WSSM magazine has an inside dimension that only allows for a 2.280" over-all cartridge length. For the 25 WSSM caliber choice, this will limit your factory ammunition choices to bullet weights typically below 115 gr (lead-tipped bullets), and will preclude the use of polymer tipped bullets such as the Nosler® Ballistic Tip. Please be aware of this before purchasing your ammunition. 
• For shooters looking to handload the WSSM cartridges with longer OACL, please consider the purchase of the UMAR Rifle with the extended magazine length.