I have a J&T 20" stainless flat-top bull barreled complete upper assembly with bolt, carrier and CH. Bought for 3-gun but it's just too heavy for me. Shoots great - very accurate.
Would like to swap for either a 20" heavy fluted, 16" bull or maybe even a 20" or 16" floated HBAR. Must be a complete upper of similar quality and condition (like new).
What have you got?