Sons of Liberty Gun Works East India Starter Kit 5.56 AR-15 Barreled Upper Receiver - 13.7"

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NOTE: This AR-15 upper assembly has a barrel less than 16” in length. These uppers are intended for use in AR-15 pistols or legal short-barreled rifles. Other configurations may violate Federal law.

The Sons of Liberty Gun Works East India Starter Kit is a great entry level AR-15 barreled upper receiver package that comes with all the features you want for a reliable, do-it-all carbine built for duty. This model features a 13.7” barrel machined from 4150 chrome moly vanadium steel and QPQ Nitride finished inside and out. The six groove 1/7 twist rate is optimal for heavy 62 grain 5.56 NATO surplus ammunition. The mid-length gas system and appropriate gas port size ensures reliable function under any conditions and minimal recoil. This Sons of Liberty Upper Receiver will ensure that your AR-15 has a quality foundation so that you can begin your next build with confidence. 

  • 13.7” 5.56 NATO barrel
  • 4150 chrome moly vanadium steel
  • HPT and MPI
  • QPQ Nitride finish
  • 1/7 twist rate
  • Mid-length gas system
  • 4140 steel .750” gas block
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AssemblyBarreled Assemblies
Barrel CoatingQPQ Nitride
Barrel ContourGovernment
Barrel Length13.5
Barrel LiningQPQ Nitride
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandSons of Liberty Gun Works
Caliber Gauge5.56 NATO
Gas System LengthMid-Length
Gas System TypeDirect Impingement
Muzzle DeviceBare Muzzle
Thread Pattern1/2 X 28
Twist Rate1:7

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