Step 1
Assess your lower receiver. Brass Goat (BG15) is compatible with mil-spec AR-15 lower receivers.
This includes these cartridges: 
.17 Remington
.204 Ruger
.22 Nosler
223 Remington
.224 Valkyrie
.35 Viper
.458 SOCOM
.50 Beowulf
    6.5 Grendel
    6.8 SPC
    7.62 X 39mm
    300 Blackout
    350 Legend
    450 Bushmaster


      Step 2
      Review these accessories and scenarios for exceptions. 
      Not Compatible
      Left-handed ejection upper receiver
      Side charging upper receiver
      Extended take down pins
      6.5 Creedmor


      Right-handed ejection upper receiver
      Extended mag release
      Magpul BAD lever

       *22 Long-Rifle Exception
      There are variances in the dimensions of lower receivers for the 22LR, depending on the manufacturer.

      Brass Goat now has a dedicated mount made to fit the Smith & Wesson MP 15-22. Select this mount in the 'Options' drop-down before purchasing.

      1-833-MAGWELL |


        Trust Guard Security Scanned