- Caliber: .300 Blackout
- Finish: Type III Class 2 Hardcoat Anodized Finish
- Upper Receiver: Seekin Precision Skeletonized Upper - CNC Machined from solid 7075-T6 Billet aluminum
- Handguard: 7" Seekin Precision NOXs M-LOK handguard - CNC Machined from 6061-T6 aluminum
- M4 Feed Ramps: Yes
- Muzzle Device: Seekins Precision Melonited Nest Flash Hider
- Barrel: 8” 1:7 Match Grade 416 Stainless Steel 300BLK Barrel
- Muzzle Thread Pattern: 5/8"-24
- Gas Block: Seekins Precision Melonited Adjustable Gas Block
- Gas Tube: Pistol-Length Melonited Gas tube
- Bolt Carrier Group: Seekins Precision Melonite Coated M16 Bolt Carrier Group
- Charging Handle: Seekins Precision DNA Charging Handle
- Weight: 3 lb. 6.1 oz.
- Length: 18"
*This upper receiver assembly has a barrel that is shorter than 16". This upper is only for use on AR pistol lower receivers and NFA registered Short-Barreled Rifle (SBR) lower receivers. All NFA laws apply!
If you’re looking for a complete .300 Blackout AR upper with a 8-inch barrel, consider the NX8 by Seekins Precision. Seekins Precision is committed to producing high-quality parts for the AR platform. Begun in 2005 by an avid hunter and firearms user, the company maintains its status as one of the leading providers of firearm parts to this day.
The NX Series .300 Blackout NX8 upper includes the Seekins Precision Skeletonized upper receiver. This Seekins billet upper is CNC-machined from 7075-T6 billet aluminum for maximum strength. The included 7” NOXs M-LOK handguard is extremely lightweight and infinitely adaptable because of it's M-LOK system. This makes the upper is perfect for tactical use. Both the receiver and the handguard feature a Type III Hardcoat Anodized matte black finish.
Also included with this Seekins Precision NX8 Upper is an 8-inch 300 Blackout match grade barrel. All the barrels produced by Seekins are machined from the finest stainless steel blanks and are given no less than four inspections to ensure their quality and accuracy.
The NX8 also includes an adjustable gas block that allows you to tune your gas system for maximum performance. The gas system components are all coated with Melonite to resist corrosion and wear. Melonite coatings are also easier to clean than the standard Parkerized finishes.
SEEKINS PRECISION NX8 COMPLETE UPPER
Posted by Tim on 28th Jun 2018
Anything Glen Seekins makes is 100% good to go. His product line thankfully continues to group and each new addition is well thought out and top rate.
His new PRO Series 8" SPROv3 Complete Upper Assembly, in my opinion, couldn't be improved upon in any way. It has run flawlessly and the accuracy is crazy from an 8-inch barrel. You can custom tune to any load with the easy to get to adjustable gas block. Glen, you did good again.