MDX Arms 10.5" 300BO 416RSS 1:8T GT Ultra Lightweight MLok HG and LT Brake Complete Upper
- T6 7075 Forged HA Type III
- M4 Feed Ramp
- Standard Mil-Spec Dust Cover & Forward Assist
- Standard Mil-Spec Charging Handle
Bolt Carrier Group
- Black Nitride / QPQ Finish
- M16 Full Auto with Staked Gas Keys
- 9310 Steel MPI tested bolt & 8620 Steel Carrier.
- Compatible with 5.56 NATO, .223 Remington & 300 AAC Blackout.
- Corrosion resistance inside and out. Superior to chrome lined and parkerized bolt carrier groups.
- Slicker hardened 70RC surface
- Includes extractor o-ring for increased extracting reliability.
- 10.5" .300 Black Out
- 1:8 Twist
- 416R Stainless Steel Barrel
- .750 Low Profile Steel Gas Block - Screw On
- Pistol Length Gas System
- 10" Ultralight Weight Series Mlok Handguard
Flash Hider/Muzzle Brake
- LT Brake- 5/8x24
Check your local laws before purchasing this item. MDX Arms and it's Affiliates Will not be responsible for misuse of this barrel/product. Legal for use on properly registered AR pistols only.
All NFA rules apply.
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