Chambered in .40 S&W the MkGS RESOLUTE uses Glock-pattern magazines, beloved for being lightweight, easy to find, and affordable. Ballistics dont lie, .40 S&W was designed to combine the best elements of 9mm and .45 ACP, giving you hard-hitting performance in a user-friendly package that's right at home in this pistol caliber carbine. After shooting the .40 S&W RESOLUTE, you will swear they were made for each other on day one.When full-size rifles are too cumbersome and pistols/SBRs don't deliver the long-range ballistic performance you need, the CMMG RESOLUTE line of carbine length rifles is the answer. Fitted with the suite of ZEROED parts and accessories as well as the legendary RIPSTOCK, the RESOLUTE is the rifle that's never out of place. The new EML 15 handguard brings style to the next level. M-LOK attachment slots are found where expected at the 3, 6, and 9 o'clock positions as well as on top at 12 o'clock with the omission of a full-length Picatinny section found on our previous handguard. This reduces weight while the additional M-LOK section still gives shooters a place to mount those must-have accessories. With a range of choices, just pick the caliber you need for the job and let your rifle do the talking.