
The SCR pistol has a threaded 1/2-28 TPI on 5.56 NATO barrels and 5/8-24 TPI on .300 BLK barrels to accept common suppressors, flash hiders, muzzle brakes and other devices.
The handguard can be configured in either KeyMod or Magpul M-Lok slots. At just under four-pounds, it is a good bit more svelte than an M85 and most AR-style pistols with the exception of the Kel-Tec PLR-16, which uses a polymer lower to come in at a couple of ounces less than the Raider.
The Raider accepts standard GI mags and is built in 5.56mm NATO and .300 Blackout variants. They intend to sell a full-up pistol for an MSRP of $865 and a Raider lower, complete with bolt-carrier assembly to match a standard AR pistol upper to, for $575.
And no, it is not Connecticut, Maryland, Massachusetts, New Jersey, or New York compliant.
Source Article from http://www.guns.com/2018/02/01/shot-show-filling-your-hands-with-a-raider-pistol-in-300-or-5-56mm-photos/