The M-16 Third Hole Drilling Jig is made for properly aligning and drilling the third hole for a full auto sear in an AR-15 style lower receiver. The drill hole is reinforced with a steel drill bushing to prevent wear and be able to use the jig over and over without any issues with tolerance. The jig and pins are made to exact tolerances. Be sure of proper fitment in your lower by reaming the rear take down pin hole to .250 and the safety selector hole to .375 which will ensure an accurate drilling of the 3rd hole.

We recommend fixturing and leveling the work piece horizontally in a vertical mill or drill press to ensure a straight hole through the lower.

M-16 Lower Parts Kits are also available and can be purchased here.

BGR is not responsible for any city, county, state, or federal laws that you do not comply with when using this product. This Jig is intended for use by 07 FFL holders for legal manufacture of full auto machine guns. Possessing this jig in conjunction with other parts may be illegal in some states without holding the proper licenses.

The M-16 Drilling Jigs are proudly MADE IN THE USA.

CALIFORNIA PENAL CODE - PEN

PART 6. CONTROL OF DEADLY WEAPONS [16000 - 34370]

( Part 6 added by Stats. 2010, Ch. 711, Sec. 6. )

TITLE 1. PRELIMINARY PROVISIONS [16000 - 17360]

( Title 1 added by Stats. 2010, Ch. 711, Sec. 6. )

DIVISION 2. DEFINITIONS [16100 - 17360]

( Division 2 added by Stats. 2010, Ch. 711, Sec. 6. )

16880.

(a) As used in this part, “machinegun” means any weapon that shoots, is designed to shoot, or can readily be restored to shoot, automatically more than one shot, without manual reloading, by a single function of the trigger.

(b) The term “machinegun” also includes the frame or receiver of any weapon described in subdivision (a), any part designed and intended solely and exclusively, or combination of parts designed and intended, for use in converting a weapon into a machinegun, and any combination of parts from which a machinegun can be assembled if those parts are in the possession or under the control of a person.

(c) The term “machinegun” also includes any weapon deemed by the federal Bureau of Alcohol, Tobacco, Firearms and Explosives as readily convertible to a machinegun under Chapter 53 (commencing with Section 5801) of Title 26 of the United States Code.

Will work

Let me start by saying that everything I purchased from these guys is top of the line quality including this jig. Unfortunately the pins are permanently attached so your forced to drill from one side through the whole receiver. Not an easy task even with a good drill press. For precision purposes the jig should be reversible so you only have to drill one side at a time. Hopefully they will change the design

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Reviewed by: Mike from USA. on 5/7/2020

Great product

Measured jig against a print and all locations are to spec. Jig is of high quality and finish. It will last for many years.

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Reviewed by: Billie from Oklahoma . on 6/13/2020

Very high quality. It looks like it would perform as advertised. Only thing I wish is that it had pins that extended out both sides so you could flip it over to the other side and drill from each side. Then it would be perfect. With a drill press and a steady hand and a good level you can get a perfect hole on both sides.

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Reviewed by: (Verified Buyer) Kenneth L from Ohio. on 9/3/2020

retired grunt

The tool is well made, but like other reviewers, I believe it would be better suited if it was reversible so it could be used on either side

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Reviewed by: Jim from Danforth. on 12/12/2020

Owner

At first I was cautious due to it not fitting on both sides of the receiver. I prefer to drill the pin holes from each side and not straight though the receiver. But in the end it worked fine.

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Reviewed by: Patrick from South Carolina. on 9/1/2020

Legit

A great conversation piece/paper weight/gift for a novelty, but looks like it is legit for those that want to do the paperwork and pay the tax or for S.O.T's who want to build their own m16!

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Reviewed by: H from Merica. on 11/24/2021

Perfection!

I have not use this yet I am waiting on the right license but this is perfectly made cannot wait to use it! Awesome prospect..

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Reviewed by: Bo from Home. on 2/15/2021

Owner

Excellent product

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Reviewed by: (Verified Buyer) William Frogge from Springfield. on 6/23/2020

Sweet Product

Great jig, just wish I could actually use it. But still cool to have.

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Reviewed by: (Verified Buyer) Reuben Oaks from Watauga, TN. on 12/18/2020

construction worker

it does what is needed for one side just be aware that the pins are only for one side so the drill may need to be adjusted for such as not to snap.

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Reviewed by: Brandon from Moriarty. on 11/27/2020

good parts and fast shipping

nice piece.....works just like its supposed too

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Reviewed by: (Verified Buyer) Wes Jordan from wichita. on 11/17/2020

Third hole club

Excellent product.

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Reviewed by: (Verified Buyer) Matt Aguirre from Texas . on 10/5/2020

Awesome Service

These guys will go out of their way to make sure you are happy. Got my part and it works great. Will definitely continue to use BGR for all my gun needs.

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Reviewed by: Aaron from SC. on 7/17/2020

Well Made

This is a well made product and BGR is great to deal with. I'm a customer for life

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Reviewed by: Bob C from Behind enemy lines in a libstate, USA. on 10/6/2023

Perfect

Great quality.

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Reviewed by: Charles from Langdon. on 2/16/2022

Third hole jig

Awsome product

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Reviewed by: (Verified Buyer) Joseph Depner 17 from Wonder Lake. on 1/12/2022

Robotics project

I’m impressed, I was able to replace the stumps with heavy magnets in order to place jig where needed on the parts in order to drill holes for wiring. Beautiful tool!!

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Reviewed by: Luis from Hawaii. on 12/6/2021

Good quality will be using soon.

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Reviewed by: Miguel Soler from WILLISTON. on 9/16/2021

3rd hole Jig

Exactly as described. I have ordered other items from BGR and have always been quality backed by great customer service. Don’t second guess, just commit to the purchase and it won’t disappoint. I will recommend BGR to all family and friends.

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Reviewed by: Thomas from Virginia. on 9/12/2021

Blade

Well made peace

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Reviewed by: Blade from Marengo . on 8/21/2021

Awesome

Great product at a great price!

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Reviewed by: Justin from MS. on 5/9/2021

Perfect

Arrived extremely quickly. The GunRunner answered my email within the hour. Product is high quality, and exactly as described.