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

Gotw Henry Spd Predator 1
Gotw Henry Spd Predator 1

Gun of the Week: Henry Repeating Arms SPD Predator

The new SPD Predator, an extension of Henry's magazine-fed Lever Action Supreme Rifle design, looks to extract the greatest possible degree of accuracy and precision from a modern lever gun.

The Armed Citizen® May 15, 2026

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

The Politically Incorrect Truth About the Armed Citizen

The Second Amendment doesn’t—and should not be treated as if—it ends at state lines. American citizens need the national reciprocity legislation that is now active in Congress.

Reaching for 1,000: A Study in Long Range Marksmanship

Calculating all the factors that go into a well-placed shot at distance can be a daunting task for those new to long-distance marksmanship, but when it all comes together, the result is gratifying.

ATF Proposes Changes to Form 4473

The ATF proposed a series of changes to form 4473 in May. If approved, the modifications would shave three pages from the paperwork and eliminate a lot of the previous form’s confusing redundancy­, trimming questions for both the purchaser/transferee and FFL.

Roar of the Muskets: The North-South Skirmish Association

The North-South Skirmish Association keeps Civil War history alive through competition shoots using Civil War-era arms at its Fort Shenandoah home base, as well as at regional shoots across the country.

Interests



Get the best of American Rifleman delivered to your inbox.