Major features of the mask are the silicone rubber facepiece which provides a seal against CB agents, a canister which filters particulate matter and agents from air, side and front voicemitters which transmit the user’s voice outside the facepiece, an outlet valve, and a drink tube

The M40 gas mask a staple of military gear. Sold as used surplus, each mask comes with its own history, with conditions varying from piece to piece. While some may bear signs of wear and tear, others might appear almost new.

Get the best deals for M40a1 Gas Mask at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

New and used Military Surplus M40A1 series NBC CBRN Gas Mask, Respirator. Uses 40mm NATO filters. Small, medium and large. Many accessories available.

Unissued U.S. M40A1 Field Protective Gas Mask Complete w/ Accessories. Our Price: $499.95

The M40 Field Protective Mask is one of the various gas masks used by the military of the United States and its allies to protect from field concentrations of chemical and biological agents, along with radio-logical fallout particles.

The M40 (or, rather, M40A1) that we know today was updated in the mid-1990s, and became the main mask for the U.S. Army, Marine Corps, and also the Navy in special cases. Officially replaced by the M50 in 2009, it was fully phased out of service by 2017.

M40-A1 Gas Mask Features: Improved Version of the M-40 with an Outer Layer Skin; Removable Outer Lenses; 2 Changeable, 1 Permanent Voicemitter, One on the Right or One on the Left Side depending on Canister Placement (This will depend on left or right rifle shooting) One in Front (Permanent) Improved C2A1 Chemical-Biological Filter

M40 gas mask with all required accessories for U.S. ARMY M40A1 field protective gas mask respirator kit. Includes M40 gas mask, carry bag, quick doff hood, outserts, c2a1 filter, second skin, and more.

U.S. Army M40A1 Field Protective Mask The U.S. Army M40 series was developed to replace the M17A2 for the Army and Marines. The M40A1 shown here is equipped with lens outserts and C2 filter.