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SOLD Seekins 6ARC Gasser Rifle with extra parts - Seekins, Proof, Triggertech, JP

rpg777

Left Windage
Full Member
Minuteman
Supporter
Sep 19, 2022
353
120
Tucson, AZ USA
Custom-built 6mm ARC gasser, all top quality components with little use on them. 16" barrel makes for a great, nimble build with or without a suppressor. Consistent hits on small plate at 1,000yds with factory ammo, even with the relatively short barrel. Sub-MOA at 100. This thing is awesome and a lot of fun to shoot and reload for, just thinning the herd and the cartridge count. Loads of spare and accessory parts included.

Rifle Specs
  • Seekins SP223 gen2 lower
  • Seekins IRMT-3 upper
  • Seekins SPR-3 12” Rail
  • Proof Research 16” SS barrel, round count ~300
  • Superlative Arms .750 adjustable gas block (set screw model)
  • Spike's Tactical melonite rifle-length gas tube
  • Rubber City Armory 6.5 Grendel BCG
  • Radian Arms Raptor charging handle (ambi)
  • Triggertech Duty 2-stage, 3.5lb pull, curved shoe trigger
  • JP silent captured spring
  • Magpul PRS lite stock
  • Aero Precision carbine length buffer tube
  • Aero Precision end plate/castle nut
  • Seekins lower parts kit w/ ambi safety selector
  • LaRue Tactical A-PEG Grip
Parts/Tools
$2150 $1925 shipped for everything
PayPal F&F with no notes or Venmo, will ship FFL to FFL

DM me if interested, thanks!

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Last edited:
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Reactions: simonp
This nut behind the bolt tried handloading for this gun when brand new to handloading, ha. The three-group pic is from that ladder on 90gr eldx, still learning. I never finished load dev before my long range trip so I just shot Hornady factory match 108, which the single group shot was from. On that trip with factory ammo the rifle was good for first or second round hits all over the range from 600-900, and we connected at 1100.
 

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