DURAMAG, DuraMag Speed, Magazine, 223 Remington/556NATO, 30 Rounds, Fits AR Rifles, Black AGF Anti-tilt Follower, Aluminum, Olive Drab Green Color:OLIVE DRAB GREEN Noise reduction rating (NRR) of

Noise reduction rating (NRR) of 26dB

Firearm model specific design for ideal fit

but made to fit more gear and accessories than you expect

Numerous variables including depth of RDS into slide

One size fits majority of people

DURAMAG, DuraMag Speed, Magazine, 223 Remington/556NATO, 30 Rounds, Fits AR Rifles, Black AGF Anti-tilt Follower, Aluminum, Olive Drab Green Color:OLIVE DRAB GREEN Noise reduction rating (NRR) ofPlastic works fine for toys and casual use, but has proven molecularly unstable in extreme environments, vulnerable to changes in humidity, and unable to retain shape during extended use. DURAMAG is the one magazine design that you can rely on during a sunny day at the range, frozen night on the tundra, in the sands of the desert, or pulling from long term storage. Relentless reliability because a firearm is only as good as its magazine 30 Round