First post go easy on me ..... I just purchased a Sig Sauer ar it's the rm 400 wth sopmod buttstock...and Keymod hand guard .... Got it from selway for $674 after the rebate .... Is this a decent first Ar .... I got a colt hbar on a trade several years ago ... But traded it off for several guns .... Probably should have kept it but ..... Live and learn .... Are they any concerns on this Sig ... Thankyou very much Preacher Ritchie

