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SOLD Seekins 300 blackout upper

Safety_3rd

Semi-pro whiskey sommelier
Supporter
Full Member
Minuteman
Aug 31, 2017
871
237
Austin Texas
Seekins factory upper with charging handle and BCG. 8 inch barrel for pistol

Sig Romeo 5 can be included or not
 

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Asking 800 shipped
 
It’s used but hardly. I have one lower and two complete uppers. A 6.5 Grendel and this 300 blackout upper that I hardly used. Kind of a cool setup though, just liked the 6.5 Grendel more so never really swapped the blackout onto the lower.
 
FWIW, I own this same upper. It’s badass and accurate to 300 on 12” steel with an EoTech and subsonic (just for fun) or supersonic ammo. The cool factor is being able to suppress it inside the hand guard. I use a SiCo Omega.
 
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Forgot to mention I cut out a portion of the handrail. My silencerco omega had a twist locking collar that when this is used with the break I couldn’t get to it to rotate to lock it so I tried this. I ended up just using the direct thread option and removed the asr brake of the barrel and it worked great. I’ve attached an image of how much the hand guard over hangs the barrel. Looks like about five or six inches (that’s what she said). I’ve also included a picture of the cut to the hand guard.
 

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FWIW, I own this same upper. It’s badass and accurate to 300 on 12” steel with an EoTech and subsonic (just for fun) or supersonic ammo. The cool factor is being able to suppress it inside the hand guard. I use a SiCo Omega.
Thanks for the positive hype. I really love the Seekins but I’m going to build a 223 upper that matches my 6.5 Grendel and I like their fancy hand guard with the flat bottom and the proprietary nut. Figured I’d start over and sell this as a complete.