300 AAC "FSSK10-SG" Pistol Upper Kit
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** THIS KIT DOES NOT INCLUDE BOLT CARRIER GROUP **
** ASSEMBLED UPPER & TEST FIRE MAY TAKE UP TO 10-15 BUSINESS DAYS TO PROCESS **
** KITS CANNOT BE CHANGED, NO MODIFICATIONS WILL BE ACCEPTED **
AR-15 Mil-Spec Upper Receiver (Stripped) - Made in U.S.A.-Cerakote Sniper Gray
- High quality and lightweight stripped Upper Receiver (does not include upper parts)
- Material: Aircraft grade Aluminum
- Finish: Cerakote Sniper Gray
- Color vary slightly form picture posted
AR-15 .223/5.56 Bolt Carrier Group- Black Nitride
PROUDLY MADE IN THE USA!
Carrier
Machined from 8620 tool steel
Heat treated to military specifications
Bolt
Machined from 9310 tool steel
Heat treated to military specifications
Shot Peened
Ground to meet military required tolerances
MPI (Mag Particle Inspected)
Gas Key
Machined from 4140
Heat treated to military specifications
Extractor
Machined from 4140
Heat treated to military specifications
Shot peened
Firing Pin
Machined from 8640 tool steel
Heat treated to military specifications
Ground to meet military required tolerances
Coated with .0002”-.0003” of hard chrome per MIL-STD-171 1.2.2.2
Cam Pin
Machined from 4340
Quench and temper heat treat
Ground to meet military required tolerances
AR-15 .223/5.56 Bolt Carrier Group- Black Nitride
PROUDLY MADE IN THE USA!
PROUDLY MADE IN THE USA!
Carrier
Machined from 8620 tool steel
Heat treated to military specifications
Bolt
Machined from 9310 tool steel
Heat treated to military specifications
Shot Peened
Ground to meet military required tolerances
MPI (Mag Particle Inspected)
Gas Key
Machined from 4140
Heat treated to military specifications
Extractor
Machined from 4140
Heat treated to military specifications
Shot peened
Firing Pin
Machined from 8640 tool steel
Heat treated to military specifications
Ground to meet military required tolerances
Coated with .0002”-.0003” of hard chrome per MIL-STD-171 1.2.2.2
Cam Pin
Machined from 4340
Quench and temper heat treat
Ground to meet military required tolerances
Carrier
Machined from 8620 tool steel
Heat treated to military specifications
Bolt
Machined from 9310 tool steel
Heat treated to military specifications
Shot Peened
Ground to meet military required tolerances
MPI (Mag Particle Inspected)
Gas Key
Machined from 4140
Heat treated to military specifications
Extractor
Machined from 4140
Heat treated to military specifications
Shot peened
Firing Pin
Machined from 8640 tool steel
Heat treated to military specifications
Ground to meet military required tolerances
Coated with .0002”-.0003” of hard chrome per MIL-STD-171 1.2.2.2
Cam Pin
Machined from 4340
Quench and temper heat treat
Ground to meet military required tolerances