NRA Gun of the Week: Del-Ton Sierra 316L MLOK

by
posted on April 2, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
What began in North Carolina as a parts and accessories supplier for America’s modern sporting rifle, Del-Ton Inc., now supplies a full lineup of turn-key, semi-automatic rifles. The company’s Sierra 316L, subject of this week’s video preview, provides the versatility of a modernized AR-15 platform while maintaining a cost-conscious approach.

Right side black rifle with text on image noting make and model "Del-Ton Sierra 316L MLOK"

Del-Ton supplies 7075 T6 aluminum, forged upper and lower receivers that are hardcoat anodized for a matte black finish. The flat-top upper is configured for right-hand ejection, along with a forward assist mechanism and ejection port cover.

Man bearing down on black-colored rifle on white shooting range.

The Sierra 316L features a 15” handguard, and thanks to Magpul’s MLOK mounting system, users can simply accessorize as needed. Del-Ton supplies a lightweight profile, 16” barrel. A twist rate of 1 in 7” is supplied and the barrel is threaded and fixed with a birdcage-style flash hider.

Close-up gun trigger and black metal receiver parts.

The gun’s lower is configured with standard, no-frills controls; a two-position safety selector is found on the left and on the right side is a magazine release button. The gun’s mil-spec buffer tube is fitted with a five-position collapsing buttstock. Provisions for sling attachment are found here, too.

Black plastic buttstock for rifle.

Watch our NRA Gun of the Week video to learn more about the Del-Ton Sierra 316L MLOK.

Del-Ton Sierra 316L Specifications
Manufacturer: Del-Ton Incorporated
Action Type: direct-gas, impingement-operated, semi-automatic rifle
Chambering: 5.56x45 mm NATO
Receivers: forged 7075 aluminum
Barrel: 16” lightweight profile
Handguard: 15” MLOK compatible
Magazine: 30-round detachable box
Sights: none; Picatinny rail for optics
Length: 36.375”
Weight: 6 lbs., 3 ozs.
MSRP: $675

Further Reading:
Selecting An AR

AR-15 Budget Build: DIY

The First Colt AR-15 Rifle

Muzzle Devices 101

A Look Back At The M1911 Double-Stack

Latest

Galco Revenger Sb7 Belt Review 1
Galco Revenger Sb7 Belt Review 1

Review: Galco Revenger Holster & SB7 Gun Belt

For those who choose to carry a finely finished, K-frame revolver, Galco offers one of its finest concealed-carry setups in the form of its Revenger holster and SB7 gun belt.

Rimfire Power: The Primary Arms CLx 1-6x24 mm Riflescope with ACSS 22LR G2 Reticle

Low-power variable optics have become popular options for today's AR-15s and other modern sporting rifles, and Primary Arms now offers an option tailored for rimfire versions of those same guns.

Gun of the Week: Walther Arms PDP F-Series Pro-X PMM

One of Walther Arms' recent introductions combines the features of several other PDP handguns, meaning the Walther PDP F-Series Pro-X PMM is packed with a number of different design elements.

The Armed Citizen® Oct. 30, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

President's Column | Your Input is Valued

I wish to thank all our members who have sent me e-mails these last 12 months. I’m doing my best to keep up with all your e-mails, but please be aware it seems I’m always 300 to 400 e-mails behind. I want to reiterate that I am reading them all as fast as I have time for.

Building an X-Card Gun for Turkey Shoots

Unofficially known as a “turkey shoot,” X-Card competition challenges shotgunners to place shot pellets as closely as possible to the center of a target. And some makers have perfected a way to fine-tune shotguns for this purpose.

Interests



Get the best of American Rifleman delivered to your inbox.