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This is a Smith and Wesson M&P-15 300 Whisper/300 AAC Blackout Complete AR-15 Upper Receiver Black. These fine upper receivers from Smith & Wesson will allow you to convert your 5.56/.223 caliber AR-15 to a .30 (300 Blackout/300 Whisper) caliber rifle delivering increased short range performance on light to medium game as well as much improved tactical performance out of short barreled rifles, including higher muzzle energies and lower muzzle flash and sound report. Here are some this uppers features:
Manufactured on the M&P15 modern sporting rifle platform.
Chambered in .300 Whisper.
Will also safely fire .300 AAC Blackout.
Very effective, short range round (approx. 200 yards) for hunting deer-sized game.
Tactical application for the cartridge is for short-range target shooting.
Cartridge has a very low recoil and muzzle blast.
Designed to operate with or without sound suppressor.
Barrel threaded to 5/8-24.
Feed ramps and gas system optimized to run efficiently with a full range of factory loaded sub-sonic and super-sonic ammunition, both suppressed and unsuppressed.
Barrel twist rate (1 in 7.5”) is compatible with a wide variety of bullet weights from 110 to 220+ grains.
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