Product Description
- MK18 Mod 1
- 10.3" 5.56 NATO Barrel
- NP3 barrel extension
- Nitride barrel
- 1-8 twist
- .070 gas port
- Requires carbine length gas tube and .750" gas block (not included)
- 4150 Chrome Moly
- M4 feed ramps
- 1/2x28 threaded
- Made in the USA
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