Firearms WTS: ADM/GEISSELE/CRITERION 300 BLACKOUT COMPLETE UPPER
- Buy - Sell - Trade
- 1 Replies
FOR SALE:
Professionally polished feed ramps. This only saw suppressed fire during indoor range trips. No rapid or extended strings of fire.
The Geissele MK8 rail is brand new and delivered 2 weeks ago direct from Geissele. I can provide the rail's documentation as proof is required.
SELLING PRICE: $1,000
FEEL FREEE TO MAKE ME AN OFFER!!! The worse thing I can say is no.
Can provide additional pics or take a face-time call for proof of life or additional concerns.
Will ship out first thing next biz day. I must secure appropriate packaging from my local Pack-N-Ship and required legal steps to ship via carrier.
PM me first to avoid scammers. I will not PM you. No business in the thread.
Accepting PayPal FF, Zelle only.








- 10.5" 300 BLACKOUT COMPLETE UPPER - All Top Shelf parts!
Professionally polished feed ramps. This only saw suppressed fire during indoor range trips. No rapid or extended strings of fire.
The Geissele MK8 rail is brand new and delivered 2 weeks ago direct from Geissele. I can provide the rail's documentation as proof is required.
- THE BUILD LIST:
- COMPLETE UPPER:
- RAIL: Geissele 9.3" MK8 in DDC color. BRAND NEW! Will ship with the OEM materials.
- UPPER RECEIVER: ADM UIC IN Anodized ODG color. Like new! Shows a couple of tiny blemishes from optic mounting in the rail and takedown and installs for cleaning after each range trip.
- BARREL: 10/5" Criterion Core in 300 Black out. Never pin & welded. No muzzle device. Only ran it suppressed. It has been Bore-tech cleaned and prepped for sale.
- GAS BLOCK: Superlative arms adjustable gas block. Will ship with OEM adjustment tool and materials.
- GAS TUBE: Aero Precision Melonited.
- BOLT CARRIER GROUP: Lantac E-BCG. Full Auto Style. Suppressed fire and thorough cleaning resulted in a dulled sheen. Still like new function. Fully stripped, cleaned and oiled for sale.
- CHARGING HANDLE: Geissele Super Charging handle in DDC. Shows normal signs of wear and use. Cleaned after each trip.
- DUST COVER: FCD Single Dimple EPC in ODG. Shows normal use on hinge stops.
- Will not ship in OEM packaging.
- OVER $1,500 if built today.
- COMPLETE UPPER:
SELLING PRICE: $1,000
FEEL FREEE TO MAKE ME AN OFFER!!! The worse thing I can say is no.
Can provide additional pics or take a face-time call for proof of life or additional concerns.
Will ship out first thing next biz day. I must secure appropriate packaging from my local Pack-N-Ship and required legal steps to ship via carrier.
PM me first to avoid scammers. I will not PM you. No business in the thread.
Accepting PayPal FF, Zelle only.







