We are the premier manufacturer of the MLS99 Milled Receiver.
Our goal is to provide customers with the Highest Quality Firearm in the market!



A variety to choose from:  Standard, Underfold, Sidefold, Stamped, Milled & Threaded.

NFA Items

NFA Items

NFA Weapons that require ATF approval:
Short Barreled Rifles & Machine Guns


Our creation made in America:
Combat Tactical Modular Rifle.


Sporting & Hunting

Parts & Parts Kits

Parts & Parts Kits

Parts Kits, Gun Parts, magazines, pouches and more!


These pistols make for a great compact package.


Here are some Frequently Asked Questions about our MLS99 Receiver.

How Are MLS99 Receivers Manufactured?

Receivers manufactured by Firing Line are from 4130 or 4140 billet material which is superior as compared to others that are casted or investment casted.

How Are MLS99 Receivers Treated?
Why Buy A MLS99?
Can I Use Factory Parts with the MLS99 Receiver?
Where is the MLS99 Made?
Is the Action Smooth?

Upcoming Events

SHOT Show®

Date: January 22-25, 2019
Location: Las Vegas, NV

Look us up at MSR Booth #12454. The SHOT Show is industry's largest dedicated exhibit for shooting sports, hunting and outdoor accessories. The SHOT Show is your best opportunity to browse manufacturers’ full product lines in addition to their latest tech and product releases.

Wanenmacher's Tulsa Arms Show

Date: April 6 - 7, 2019
Location: Tulsa, OK

Look us up at Booth 24B 6-9. Premiering the CTMR, MLS99 Receiver, AK’s, AR’s, Single Action, 22 Rifles, Handguns: RUGER – GLOCK – S&W – SIG SAUER. This is the show you have been waiting for. We have the largest selection and the best prices! If you miss this show, you will regret it. Make your plans now. Tell your friends. Bring your kids and have a great time.

Oklahoma Full Auto Shoot & Trade Show

Date: June 22-23, 2019
Location: Wyandotte, OK

Admission: $15 1-Day Package includes Entry & Coupon Book. $25 2-Day Package includes Entry, Coupon Book & $5 Off T-Shirt Purchase. Over 900 feet of machine guns. Helicoper rides & Gunnery Course. Sniper Shoot & Kill The Car. Night Shoot with Tracers.  Family Event – Everyone Welcome!


Firing Line Custom Build AK on a MLS99 Receiver

Start Your Custom Build Today!

What Our Customers Say:

Contact Information

69400 E. HWY 60 Wyandotte, OK 74370
Phone: 918-666-2788
Fax: 918-666-1687

Payment Options

We offer secure checkout with these payment options:

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You can feel safe shopping with us. We are committed to protecting your privacy.