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Michael, this has a 1:7 twist. Found here: https://www.cmmginc.com/product/rifle-endeavor-100-mk4-224-valkyrie/

1:7 twist see ********Specifications and Features: CMMR Endeavor 100 Series AR-15 Semi Auto Rifle 25A48D2 Direct Gas Impingement System .224 Valkyrie 20" 416 Stainless Steel Barrel (Salt Bath Nitride Finish) ***********1:7" Twist Rate Forged 7075-T6 Aluminum M4 Type Upper Receiver Forged 7075-T6 Aluminum AR-15 Type Lower Receiver Rifle Length Gas System A2 Muzzle Device Barrel Threaded 1/2x28 CMMG RML15 M-LOK Free Float Hand Guard CMMG Mil-Spec Charging Handle CMMG A2 Pistol Grip CMMG A1 Fixed Stock CMMG Single Stage Mil-Spec Style Trigger CMMG Mil-Spec Trigger Guard CMMG Mil-Spec Safety Selector 10 Round Magazine Compatible with .224 Valkyrie/.22 Nosler/6.8 SPC AR-15 Magazines Overall Length 38.9" Overall Weight 7lbs 10oz Unloaded Hard Coat Anodized Finish on Receiver's/Hand Guard Matte Black Finish

Michael, this Rifle has a 20" 416 Stainless Steel Barrel (Salt Bath Nitride Finish) with a 1:7" Twist Rate. Barrel Threaded 1/2x28