FCD/ 12.5" Rosco K9 Complete Upper Receiver Group

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Your Price: $999.00
Retail Price:$1,075.00
You Save:$76.00(7%)
In Stock.
Part Number:CC-K9UPPER-12.5

Choose Options

Optional Upgrades
None
Pinned gas block [+$30.00]
Polish Feed Ramps [+$30.00]
The K9 Complete Upper Receiver Group features the brand new Rosco K9 tapered nitride treated 416 stainless tapered barrel, with their new "Patrol Length" gas system.  This length gas system (between a Carbine and Mid Length) blends the benefits of the midlength system (particularly when suppressed) against the rugged reliability of the carbine length system more common to the 12.5" barrel length.
This 12.5" upper begs to be run hard and put away wet.  Suppressed, or not, the extended effective range offered by the 12.5" barrel does a great job at bridging the gap between awkwardly short uppers with insufficient rail space, and more traditional barrel lengths like 14.5-16".  If your 10.5" upper feels crowded once you've added your relevant accessories (lights, lasers, etc), then a 12.5" barrel length with an 11.5" rail might be ideal for you.

Here are the specs on this package.
  • Rosco K9 12.5" barrel - true 5.56mm chamber, Patrol length gas system, 416R stainless (nitride treated inside and out), factory dimpled for the gas block set screw, 1/2x28 threads.
  • Sons of Liberty "Capable" Bolt Carrier Group - Carpenter 158 bolt (HP and MPI tested), 8620 carrier steel, Sprinco 5 coil extractor spring, OCKS carrier screws, proper staking, laser etched cam pin for consistent orientation confirmation.
  • Forward Controls Design 11.5" RHF handguard - at nearly 12" in length, your SBR/ pistol won't feel quite so cramped anymore.
  • Forward Controls Design GBF gas block - parkerized finish gas block with tight tolerances for a perfect gas seal, paired with a Melonite treated gas tube for reduced wear against the carrier key.
  • Forward Controls Design URF V2B - Billet upper receiver
  • Forward Controls Design LDFA dimpled forward assist 
  • Forward Controls Design 6315KM flash hider 
  • Forward Controls Design ASF charging handle
  • Forward Controls Design EPC Twin Dimple ejection port cover (Black)
Each upper is inspected for its gas port size, bolts are headspaced to the barrel, feed ramps are inspected (and optionally polished), the barrel nut is properly greased and torqued to spec, gas block set screws are degreased then properly torqued and secured with Rocksett, then the finished upper is test fired with .223 and 5.56mm pressure ammo on a milspec lower receiver.  Each upper then ships with a spec sheet outlining all components used, and methods applied during assembly, so you know your upper receiver group is ready to go right out of the box (just add lube... and ammo!).

These upper receivers are built to order, so please allow 1-2 weeks for delivery.

Feel free to contact us if you'd prefer to substitute one small part for another in these builds.

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