Thureon Defense, known for their carbines that use Glock mags, has released a new line of carbines at the 2014 SHOT Show that accepts Sig Sauer, S&W M&P and Springfield Armory XD magazines. Their new XA carbine uses Springfield Armory XD mags, the SG carbine uses Sig Sauer mags and the MP carbine uses S&W M&P mags. The XA and MP models (XD and M&P) are available in 9mm, .40S&W and .45ACP. The SG (Sig Sauer) is available in 9mm, .40S&W and .357 Sig. They’ll be available in 16.5″ and 19″ barrel lenghts with various buttstock and handguard options. MSRP on them starts at $959, check out Thureondefense.com for more info.