Best 300 Blackout Magazine 2021

300 blackout (BLK) is a rifle cartridge of an intermediate class, suitable for home defense, hunting, target shooting, and plinking.

The effectiveness of shooting distance should be taken into account, depending on the 300 AAC Blackout barrel diameter: 460 meters for a 16-inch barrel, 440 meters for a 9-inch.

Why do we need a 300 blackout magazine?

300 Blackout or 300 AAC are different names for the same cartridge, which was developed to empower the AR platform and penetrate on intermediate distances with reduced recoil. 300 AAC magazine is considered for 30, 10, 20 round capacity or 5/30 crimped.

Best 300 Blackout Magazine Review | Best Magazine for 300 Blackout

Image	Product	Brand
	Lancer L5 Advanced Warfighter Magazine	Lancer
	Daniel Defense DD Magazine 10 Round	Daniel Defense
	Magpul PMAG Gen M3 .300 Blackout Magazine	Magpul
	Lancer - AR-15 L5AWM 300BLK Translucent Smoke Magazine 30RD	Lancer
	CZ 13014 CZ 527 300 AAC Blackout 5 Rd Black Finish	CZ - USA
	MAGPUL - AR-15 30RD PMAG GEN M3 WINDOW magazine 300BLK	MAGPUL
	Duramag Speed AR-15 300BLK Aluminum Rifle Magazine	Duramag
	D&H INDUSTRIES AR-15 300 BLACKOUT Magazines	D&H INDUSTRIES
	Duramag SS AR-15 300BLK	Duramag

#1 Lancer L5 Advanced Warfighter Magazine

Lancer developed magazines, made from steel, with visually-noticeable flat dark earth floor plate, improving internal geometry of longer heavier cartridges to stack duly. Especially for 300 AAC, there are two 10-Round models: Opaque Black and Translucent Smoke with molded markings (.300 Blackout) on the outside of the mags casing.

#2 Daniel Defense DD Magazine 10 Round

Daniel Defense refined the feed lip design to make magazine feeding and reliability more efficient. This 10-Round magazine has the non-snag design of impact-absorbing baseplate with a reinforced anti-tilt follower. The lightweight DD magazine is made from a reinforced molded carbon-fiber polymer.

#3 Magpul PMAG Gen M3 .300 Blackout Magazine

View on BassPro View on Cabelas View on Brownells

The .300 Blackout PMAG with 30-round capacity consists of a reinforced black casing with aggressive front and rear texture, a slim floorplate, which is simply to remove, a paint-pen dot matrix to mark identification, and a dust cover. Magpul developed .300 Blackout magazines with distinct rib design, ensuring visual and tactile differences, having excluded cross-loading danger with any other PMAG.

#4 Lancer AR-15 L5AWM 300BLK Translucent Smoke Magazine 30RD

This magazine is crafted with hardened steel feed lips for one of the most popular calibers for the AR-15 platform, combining steel and polymer, adopting it for the dimensions of the .300 BLK cartridge. These Lancer magazines feature non-tilting followers with geometry, specially built for the cartridge, having passed all military-grade testing. These mags have a translucent smoke finish and a 30-round capacity.

#5 CZ 13014 CZ 527 300 AAC Blackout 5 Rd Black Finish

CZ-USA magazines are made of steel with a black finish. Due to the small capacity of 5 rounds can be used even in states, where the magazine’s capacity limits exist. These detachable CZ 527 mags are designed for 300 AAC Blackout and Whisper calibers (7.62x35mm).

#6 MAGPUL – AR-15 30RD PMAG GEN M3 WINDOW magazine 300BLK

MAGPUL GEN M3 WINDOW is a refined polymer-molded magazine, purpose-built for the AR-15/M16/M4 platform, representing the 3d-generation of PMAG, improving its versatility, strength, and reliability. MAGPUL made a new construction four-way anti-tilt follower, providing smoother feeding, even being contaminated by sand or dust. This magazine features: a pop-off dust cover to diminish debris intrusion and secure storage; a rigid and slim removable floorplate to simplify side-by-side carrying in tight mags pockets.

#7 Duramag Speed AR-15 300BLK Aluminum Rifle Magazine

Duramag developed rifle magazines, combining heat treatment and stainless steel (400 series) to make them a bit heavier, but much more durable than aluminum ones. These CPD magazines with a new snap on the anti-tilt follower and bigger inner room improve rounds loading duly and minimize failure because of jams.

#8 D&H INDUSTRIES AR-15 300 BLACKOUT Magazines

AR-15 magazine is crafted for a .300 Blackout cartridge. D&H designed magazines of an aluminum casing with a black finish and a red magazine follower. There are available 3 models, depending on the magazine capacity: in 10, 20, and 30 rounds.

#9 Duramag SS AR-15 300BLK

Duramag developed innovative proprietary coatings for magazines, containing Black-T with a good molecular attachment that greatly diminishes friction coefficient, giving smooth operation due to constant lubricity. This Stainless-Steel rifle magazine crimped from 30 Rounds to lower capacities. Sturdy CPD magazines body made of heat treatment and 400-series stainless steel combination, equipped with a bigger inner room and a new snap on the anti-tilt follower for duly rounds loading and jams excluding.

#BONUS 1: MagPump .223/5.56 AR-15 Magazine Loader, without MagDump MP-AR15-2

MagPump AR-15 Magazine Loader is suitable with such calibers as: .300 AAC Blackout, .223 Remington, 5.56x45mm NATO, and compatible with all Mil-Spec AR-15 mags. This 90-round capacity hopper-fed is made of lightweight and reinforced polymer, it can be attached to any Picatinny rail or Weaver and orient ammo in any direction. MagPump developed built-in safeties to prevent round damage while loading and after stopping loading when mags are full. Before loading, make sure that the mags are securely inserted and not bolted to your reloading bench.

#BONUS 2: Jagemann Munition Components .300 AAC Blackout Rifle Brass

.30 caliber rounds, used in magazines to the AR platform, have the peculiarity of minimal recoil, still retaining the punch. Jagemann Munition Components presents a compact .30 caliber solution for .300 AAC Blackout Rifles, with 100 Piece quantity, made of brass.

#BONUS 3: Radical Firearms 10.5 in .300 AAC Blackout Upper Assembly

.300 AAC Blackout Upper Assembly, designed to be installed to any Mil-Spec AR-15 lower receiver, consists of a flat top, forged upper drop-in receiver with forward assist, shell deflector, barrel nut, ejection port door, 10.5-in barrel (HBAR), A2 flash hider, and low-profile micro gas block. Radical Firearms offers 5 models of upper assemblies for .300 AAC Blackout: for gun rail types: M-LOK, KeyMod, and Quad Rail with an anodized or matte finish.

FAQ

Conclusion

MAGPUL and Lancer are the best-rated .300 Blackout magazines’ manufacturers, having more positive reviews than other ones from the list above. If you live in the states, where the magazine capacity is limited, you can choose models chambered for 5 or 10 rounds cartridges. 300 Blackout magazines can be made of aluminum or stainless steel, the last material makes the casing stronger, but a little heavier. Among convenient features are transparent windows to control the mags fullness and pen dot matrix to do ID marking. If you want to save your time and effort for mags loading, you can buy the hopper-fed as well. This tool for loading high-capacity magazines allows you to be prepared for a full day at the range.

Best pick

MAGPUL – AR-15 30RD PMAG GEN M3 WINDOW Magazine. It is a refined polymer-molded magazine, purpose-built for the AR-15/M16/M4 platform, representing the 3d-generation of PMAG, improving its versatility, strength, and reliability. This magazine has extra reinforced feed lip and mag catch areas.