Items Available For Purchase Today Essential Arms Colt AR15 M4 Short Length... $29.00 SELLER: Robertson Trading Post M5 (.308) Stripped Upper Receiver - Anod... $149.99 SELLER: Discount Tactical Supply Timber Creek 223-MBC-R .223 Muzzle Break... $99.99 SELLER: DEGuns_net Damaged- Timber Creek 5.56 16.25" Barrel... $249.99 SELLER: DEGuns_net Timber Creek 223-MBC-BB .223 Muzzle Brea... $99.99 SELLER: DEGuns_net Timber Creek Low Profile Hand Stop - Bla... $29.99 SELLER: DEGuns_net Timber Creek Low Profile Hand Stop - Bur... $29.99 SELLER: DEGuns_net Timber Creek Low Profile Hand Stop - FDE... $29.99 SELLER: DEGuns_net Timber Creek Low Profile Hand Stop - Ora... $29.99 SELLER: DEGuns_net Timber Creek Low Profile Hand Stop - Pur... $29.99 SELLER: DEGuns_net Timber Creek Low Profile Hand Stop - Red... $29.99 SELLER: DEGuns_net TIMBER CREEK M-5S-PR-BLUE 5 SLOT PICATIN... $23.99 SELLER: DEGuns_net Non Guns Gun Parts M AR Upper Only . PWS MK MOD M UPPER X Primary Weapons Systems | 13 | 0 | ?t=&sft=<id=&co=&og=&ong=&to=&lid=&cid=13&as=&mn=&mx=&f=&ca=&ffl=&oi=&dn=&zipcode=&distance=&limittostate=&pagenum=1&numberperpage=12&sort=&local=&sold=0&sku=&upc=&bl=&gf=&ff=&distributorid=&manufacturer=&model=Lc | 31.2262ms See All 7.75" PWS MK107 MOD2-M UPPER 762X39 Primary Weapons Systems For Sale from: Fortress Tactical ( FFL) | No feedback Yet View | Verified Seller | 2 Completed Sales View Sellers Items 7.75" PWS MK107 MOD2-M UPPER 762X39 Primary Weapons Systems For Sale from: Fortress Tactical | No feedback Yet View | Verified Seller | 2 Completed Sales View Sellers Items Fortress Tactical Seller Since: Jan. 2007 Identity Verified ( ENKA, NC ) This seller is an FFL City: Enka State: NC SOLD - $948.00 Shipping: See Description (or Arrange local transfer) Accepted Payment Methods: Returns: No Returns This Seller Accepts Instant Online Payments Description: The MK107 762X39 MOD2-M Primary Weapons 7.75 inch complete upper receiver features PWS long-stroke piston system, no forward assist, MLOK handguard with integrated Picatinny sections, CQB compensator, adjustable gas block and Radian Raptor charging handle. Also know as the "Diablo", this is the shortest PWS upper available. For your SBR or pistol build, the MK107 is the best option for a compact weapons platform. As is normal with short-barrel uppers, concussion can be an issue. The factory-mounted close-quarters compensator helps mitigate this by sending the blast forward. Fortress Tactical recommends C-Products Defense 762X39 AR15 magazines for use with this upper. 3lb 9oz weight 17.2" overall length Lightweight upper receiver No forward assist PWS CQB compensator 7.75" 416R FNC LIFE HD barrel 1:10 twist threaded 5/8X24 7" PicLok handguard Integrated MLOK w/Picatinny sections 3-position adjustable gas block Pistol-length long-stroke piston system FNC LIFE HD bolt carrier & polished bolt Radian Raptor charging handle Limited lifetime warranty Condition: New In Box Item #: 996085084 Location: NC Trades Accepted: No Share: Shipping Notes: Free USPS Priority Mail shipping to you (no FFL required) Specializing in Primary Weapons (PWS), Suppressors and SBRs. Items You've Viewed Recently 7.75" PWS MK107 MOD2-M UPPER 762X39 Prim... $948.00 SELLER: Fortress Tactical (FFL Dealer) Add To Cart