Parts list:
Red X Arms upper
Red X Arms 16" stainless steel fluted barrel (1:9 twist)
Samson Evolution 13" handguard 
Anderson lower (closed ear)
Leapers UTG pro buffer tube
Standard 3.0 oz buffer
Standard A2 grip
PSA enhanced polished nickel boron trigger 
PSA nickel boron premium BCG
Battle Arms Development enhanced mag release (ridgeway blue cerakote) 
Magpul CTR stock
Samson QD sling attachment
RXA X-treme SS muzzle brake
Magpul MBUS sights 
Sig Sauer CP1/G1 prismatic 3x illuminated scope
(1) 30 round Pmag included

Like new condition with only a couple hundred rounds through it. Mostly been a safe queen. Price as pictured is $700. More pictures available upon request. Specific trades listed below, otherwise let me know what you got. Thanks.