Extremely lightweight, suppressor compatible and infinitely adaptable because of the M-LOK or KeyMod attachment system, the Modular Combat Suppressor Rail is perfect for tactical or competition use. Precision machined from 6061-T6 aluminum, it features a seamless top picatinny rail and M-LOK or KeyMod slots at 3, 6 and 9 O'clock positions for solid mounting of accessories where needed. The Modular Combat Suppressor Rail (MCSR) V2 is a high performance, true free float handguard system (when paired with Seekins IRMT-R Upper) designed to be compatible with the use of a suppressor straight out of the box. Precision machined from 6061-T6 aluminum, the inside diameter is large enough for most suppressors to fit inside, protecting the shooter from suppressor burns. The aggressive use of cooling slots help dissipate heat from both the suppressor and barrel, as well as make the handguard extremely lightweight for your AR-15 rifle. The Seekins Precision MCSR comes with a two piece nut ...