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K23P45UR-OR: Complete 45 ACP 6.5" Optics Ready Flat-top AR15 Pistol/SBR Upper

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K23P45UR-OR; 45 ACP pistol Optics Ready Flat-top Upper 

Availability: Available (built to order)


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The K23P45UR-OR is a 100% complete Optics ready Flat-top 45 ACP upper (including bolt carrier assembly, and charging handle), that is head-spaced, test fired and ready to drop on your legal pistol lower, or legally registered Short Barreled Rifle.

Reliable and accurate, the K23P10UR-OR has a 6.5" 416 SS barrel chambered in the powerful 45 ACP cartridge, having a forged picatinny flat-top upper receiver, picatinny gas block, aluminum free-float handguard (with quad-rail option), and A2 flash suppressor.

Comes standard with one Hi-capacity magazine.

Everything need to convert your registered pistol AR or registered SBR from 5.56 to 45 ACP.  No need to change the trigger, hammer, buffer  - or add a mag-well block like other after-market conversions Swap back and forth from 5.56 to 45 ACP in seconds!



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Olympic Arms, Inc. is not affiliated with the IOC/USOC or any other Olympic sports organization.