CMMG Front Sight Base Assembly F AR15 Black. 750" gas journals. Includes front sight post and sling loop. Features of CMMG Inc F Marked Tri Frt Sight Base Ass: F marked Front sight base assembly For .750 gas journals Sling loop Package Contents: CMMG Inc F Marked Tri Frt Sight Base Ass Specifications for CMMG F Marked Front Sight Base Assembly AR15: Manufacturer: CMMG Color: Black Gas Block Journal Size-Diameter: .750 in Size: One Size Gun Make: AR Platform Gun Model: AR-15 Additional Features: F-Marked Condition: New Package Contents: CMMG F Marked Front Sight Base Assembly AR15 The CMMG Inc F Marked Tri Frt Sight Base Ass is a quality addition to the CMMG lineup. For more great deals on AR Gas Blocks by CMMG please browse our CMMG Inc Gun Parts page. What firearm models does the manufacturer say CMMG F Marked Front Sight Base Assembly AR15 is compatible with? The manufacturer suggests that CMMG F Marked Front Sight Base Assembly AR15 is compatible with AR-15CMMG 55DA338: Front Sight Base Assembly F AR15 Black