Agent Optimized View

Notice: Structural HTML has been stripped. Semantic content and JSON-LD preserved.

Full content and product data is available below in JSON-LD format and semantic HTML.

Loading
Brand:

NBS 7.5" Slick Side Billet 300 BLK Nitride Pistol M-LOK Upper Assembly

Save 16 % MSRP: $279.95 $234.95

November Savings Sale: use code BFMONTH12OFF for an additional 12% off this item. Holiday Price Protection Holiday Price Protection Info If the price drops within 30 days of your purchase, we’ll credit the difference.

Out of stock

Join the waitlist to be emailed when this product becomes available

SKU: 3331 Category: Description

An affordable pistol upper assembly without cutting corners. This means using a nitrided steel gas block from an American Manufacturer as opposed to aluminum and quality American Made handguards, paired with a 7.5″ Nitride treated barrel chambered in 300 AAC Blackout.

This also means taking the time to ensure that the upper will function reliably. We use Permatex 242 on key components while using mil-spec AEROSHELL 33MS Anti-Seize grease on the properly torqued barrel nut and muzzle device.

Bottom line is this: you hear all the time about guys buying a budget upper and it not lasting or having to send it back because of some hardware defect or other issue caused by a careless assembly process. That is why we use quality components and assemble each unit to the highest standard of quality. We want your upper to function flawlessly out of the box. In fact, we guarantee it will.

Lifetime Warranty

Upper Receiver NBS Slick Side Billet Upper
– 6061 Aluminum
– Pairs beautifully with any mil-spec lower
– M4 Feedramps
Barrel 7.5″ 300 BLK 1:7 Twist Pistol Length Nitride
Gas System Pistol Length
– NBS Nitrided Steel Gas Block
– Stainless Steel Pistol Length Gas Tube
Handguard 7″ NBS M-LOK Free Float Handguard
– American Made
– Extruded 6061 Aluminum
Muzzle Device Mil-Spec A2 Birdcage w/ Black Nitride Finish
Weight 35 oz
Dimensions 19.5 × 5 × 5 in
Barrel Finish

Nitride / Melonite

Gas System Length

Pistol

Barrel Length (inches)

7.5

Barrel Chamber

300 BLK

Twist Rate

1-8

BCG / Charging Handle

Not Included

UPC 3331
P65 Warning Message P65 Warning Message

Compliance

NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.

Please select an FFL from the table below, if you do not see your desired FFL, click "Set Later" and you will be able to enter your FFL's information after checkout.

Name City State ZIP Phone
Loading FFL contacts, please wait...
Please select an FFL from the list.