Smith & Wesson M&P15 .300 Whisper

by
posted on September 17, 2012
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
mp15-300-whisper.jpg

Smith & Wesson took one of its most well known designs and paired it with an increasingly popular caliber to create the M&P15 300 Whisper. Though chambered in .300 Whisper, it will also safely fire .300 AAC Blackout.

The 300 Whisper builds upon the brand's established M&P line, offering sub-sonic and supersonic capabilities with consistent performance and accuracy. The 300 Whisper is easy to shoot, accurate and versatile—it's a comfortable fit when hunting, at the range for some recreational shooting or deployed for home protection.

Technical Specifications:

Model: M&P15 300 Whisper
Caliber:
.300 Whisper, .300 AAC Blackout
Capacity:
10 Rounds
Action:
Semi-Auto
Barrel Length:
16"
Barrel Twist:
1 in 7.5" 5R Rifling
Overall Length:
35" Extended/32" Collapsed
Stock:
6 Position CAR
Weight:
6.38 lbs.
Barrel Finish:
Melonite
Receiver Finish:
Realtree APG
MSRP: $1,119

Latest

Mendoza RM22 01
Mendoza RM22 01

Hecho en México: The Mendoza RM22 Rifles

Mendoza Firearms claims that its RM22 rimfire rifle is the first indigenously produced rifle to be exported to the United States.

Preview: MGE 1911 Grips

Mammoth Grip Exchange is a small startup company that specializes in crafting replacement stock sets for M1911-pattern pistols in a dizzying assortment of exotic materials...

Gun Of The Week: Mossberg 990 Aftershock

For this Gun Of The Week episode, American Rifleman staffers hit the range with the Mossberg 990 Aftershock, a non-NFA, shotshell-firing firearm that provides plenty of power in a compact package.

The Armed Citizen® Nov. 14, 2025

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Christensen Arms Evoke: A Budget-Friendly Hunting Rifle Built For The Field

For hunters seeking a well-built, no-frills hunting rifle, the Christensen Arms Evoke offers a host of desirable features, all at a price that leaves room for hunting tags and travel costs.

Wholesale Change in Glock Lineup & Other Industry Moves

Fall 2025 has proven to be a volatile time within the firearm industry, with companies like Glock announcing major changes to its product lineup, while other companies announce expansions and moves.

Interests



Get the best of American Rifleman delivered to your inbox.