Aero Precision M4E1 Threaded Stripped Upper Receiver - Anodized Black gas mask for sale UL Classified ANSI/OSHA Z359

UL Classified ANSI/OSHA Z359

Certification(s): CE EN 353-2 when used with an ASAP’SORBER or ASAP'SORBER AXESS energy absorber

Overall dimension: 4

5” Coil 2

High Density Injected Rubber on the back of the hands offer OUTSTANDING protection while allowing great flexion and mobility and maintaining a low profile (unlike hard

Aero Precision M4E1 Threaded Stripped Upper Receiver - Anodized Black gas mask for sale UL Classified ANSI/OSHA Z359M4E1 Threaded Stripped Upper Receiver The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075 T6 Aluminum and precision machined to work with all mil spec AR15 parts. The M4E1 Threaded Upper Receiver