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JT-15 Complete Rifle With 80% Lower

AR-15 California Compliant Rifle

The Juggernaut Tactical Rifles



G17 Stripped
G19 stripped


AR-15 80% Lower Receiver Professional Jig Tool Kit - Superior Performance Cutting Tools

In stock
Product Details

AR-15 80% Lower Receiver Professional Jig Tool Kit

Tool Kit Includes:

  • Patented “Chip Breaker” 5/16” Solid Carbide End Mill With ¼” Shank
  • 3/8” Drill Bit For Drilling Out Safety Selector Hole
  • 5/32” Drill Bit For Drilling Out Tigger Slot Pilot Hole And Mass Material Removal In The Trigger Pocket
  • 5/16” Drill Bit For Mass Material Removal Of the Trigger Pocket.

Tool Kit Insert for 5/16” End Mill
“Instructions for best Tool Kit performance”

Congratulations, you have just taken ownership of the most Bad Ass custom Tool Kit in
the entire industry for machining 80% Lower Receivers. 100% American Made in every single
way! Yep, you heard right. R&B Tactical Tooling, Inc. is proud to provide you the industry’s
first custom Tool Kit for 80% Lower Receivers. This tool kit was designed and manufactured
from the ground up to optimize the machining of 80% Lower Receivers, by hand and at home
with power tools you may already have.
This Tool Kit was designed to be used with the industry’s most popular jigs from 80%
Arms (GEN 1 AND Gen 2), Juggernaught Tactical, 5D Tactical (Gen 1 AND Gen 2) jigs as well
as many others. This Tool Kit also works with almost every Jig that requires a 5/16” End Mill
with a ¼” shank. Also, our Drill Bits will work with nearly any jig on the market today because
they are the exact size you will need to drill out the safety selector hole (3/8” Drill Bit that is
included), trigger and hammer pin holes that require a (5/32” Drill Bit that is included), as well
as a (5/16” Drill Bit that is included) for the trigger slot pilot hole and mass material removal in
the trigger pocket. Also, most of the industry’s GEN 1 and Gen 2 jigs require this 5/16” drill bit
for mass material removal of the trigger pocket. Some of the new Generation Jigs in the market
can use this drill bit as well. Make sure to check your jig’s instruction manual to make sure this
particular drill bit is required. All of the other drill bits in our Tool Kit are a must have for every

other operation, in EVERY jig.

Before you start, it is recommended that you read the instructions that come with the
specific jig that you intend to use, because the following tips might be slightly different for your
exact jig. It is VERY IMPORTANT to do the following machining steps in order. Failure to do
so may damage your lower and damage the bits. Always make sure to use a quality cutting or
tapping oil on ALL FOUR BITS! WD-40 and 3M oil are not cutting fluids, so do not use these!
Any home improvement store will have quality cutting and tapping oils. Tap Magic is


#1. 3/8” Drill Bit, or the 5/16” Drill Bit is mostly used for bulk material removal in the
trigger pocket. Have your drill press set at a moderate to slow speed. When the drill bit begins to
make contact with the material, feed the drill bit very slowly. This extra time will allow the drill
bit to create a “side wall” in the hole. This side wall will support the bit and prevent it from
pulling you'r jig up off the table. Once the side wall is created, you can gently accelerate the
plunge feed. Failure to start the hole slowly could result in damage to your lower or the bit.
#2. 5/16”” End Mill to machine the trigger pocket. If your lower receiver is made out of 6061
T6 aluminum, your depth of cut for the first six passes are 3/16” deep and the last pass is 1/8”
deep. This means you can complete the milling process in 7 passes. Make sure that you are using
cutting or tapping oil on the end mill for every pass and run the router motor at a Medium/High
speed. Make sure to clean out the chips between each pass. The last two passes may be a “plunge
cut” depending on your specific jig. That means there may not be a hole to start the End Mill
inside of. So, you will have to rest one edge of the router motor on the jig and gently swing the

end mill with one smooth rocking motion down into the material. Make sure you hold the router

motor at the base with both hands securely. If you incorrectly hold it at the top it may bounce. If
your lower receiver is made out of 7075 T6 forged aluminum, you may find that you have to
make your milling cuts a little bit more shallow as compared to the steps that are the same as
above. Before your final milling passes, always make sure to consult your jig’s depth gage to

ensure your final cuts are at the proper depth.

#3. 3/8” Safety Selector Switch hole, 5/32” Trigger and Hammer Pin holes and the 5/16”

Trigger Slot Pilot hole/ mass material removal. When drilling the three holes on the side of the
receiver, it is critical that you drill these holes after the trigger pocket has been fully machined.
There are no short cuts, if you drill these holes first or “out of sequence” it will cause the drill bit
to “bind” on a previously drilled hole. This can damage the drill bit, the drill press, and possibly
give you an unsatisfactory finish on your safety selector and trigger pin holes. Make sure to start
drilling the holes slowly to create a ‘side wall’ in the hole to support the bit, then continue to drill
down. When you are ready to pull the bit up and out of the hole, do it slowly as to prevent the bit
from ‘catching’ on the under-side of the material. Also, we designed and machined these Drill
Bits to polish the inner diameter of every single hole they drill. So, taking your time while
drilling will produce a very smooth finish!
#4. You may find on some jigs that you have to pull the end mill out of the router collet a
little bit to have enough length to reach the final milling passes on the bottom of the trigger
pocket, as well as creating enough clearance between the collet nut and the top of the jig. Make

sure you do not cut into the trigger guard.

#5. Pro Tips. Always make sure the collet of the router has been degreased with a high-
quality carburetor cleaner or rubbing alcohol to ensure the collet doesn’t let the tool slip. The
collets on inexpensive hand-held routers are usually not high quality, so having a clean collet that

is tightly secured to the tool will give best performance.

The R&B Tactical Tooling 80% Lower Receiver Cutting Tool Kit was created, designed and
manufactured by us. We are The Masters of the Black Arts of Tooling ™. This tool kit is the
industry’s first that is specially designed and manufactured to optimize the machining of
personal built lower receivers. That means you can get your Saturdays back. Everything in this
box, including the box, is Made in America.
This Tool Kit includes one Patented 5/16” Solid Carbide End Mill that has a ¼” Shank for use
with some of the most popular jigs. This End-Mill has application specific “Chip Breaker”
geometry for milling aluminum. This tool is used for the precise milling of the trigger pocket.
How does this get your Saturdays back? The 5/16” End Mill cutting depth is 4.5 times deeper per
cut and travels through the material 3 times faster at the same time. That means you have
more than13 times the total material removal rate than the “other” end mills on the market.
Also, included in the kit are three application specific Parabolic Drill Bits. These drill bits are
manufactured with application specific geometry that optimizes the drilling of aerospace grade
aluminum, which is what 80% Lower Receivers are made from. These drill bits do not require
you to “clear the chips” like other drill bits do. In other words, having to continually pull the drill
bit out to get the chips out of the hole. That means you can steadily cut all the way through to the
bottom of the hole in one plunge without pulling the drill bit out.
The coating we have applied to all four of our cutting tools is absolutely nothing like everyone
else uses. Manufacturing custom cutting tools is the only way our family has put food on the
table for over 50 years. We know how to make a great tool, and we know how to engineer a
proper coating that is specific to the job at hand. The coating we developed contains Gold and
Silver, which provides a bit of natural lubrication. Also, we have added Titanium, this helps
provide longevity of the cutting edge. However, you still need to use a high-quality cutting fluid
on all four tools to remove heat from the machining process. WD-40 and 3M oil are NOT cutting
fluids, so do not use these! We recommend the use of any high quality cutting or tapping oil
available at any home improvement store. “Tap Magic” works very well!
Last, but not least, is the included Non-Marring Drill Stop. This drill stop has a patented, low
friction, lubricated polymer collar bearing. It eliminates any marring to the surface you are
drilling, thus protecting your prized receiver from scratches. This drill stop is used to control drill
hole depth. In a nut shell, this tool kit kicks ass!

R&B Tactical Tools

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R&B Tactical Tooling

Cannot be Shipped to the State of New York, New Jersey and Connecticut.

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U.S. Patriot Armory (USPA) is a veteran owned small business located in the city of Apple Valley (Just North Of Ontario California). Our mission is to be your go-to source for quality firearm products by offering exceptional quality at competitive prices. USPA has everything you need to be prepared for uncertain circumstances. Protecting your family’s well-being is your top priority and being prepared for anything will give you an unprecedented advantage. We are a one stop destination for top of the line firearms, parts, tools, survival accessories, and kits to ensure you’re never caught off-guard regardless of the circumstances. We take the safety of our customers very seriously and we stand behind the quality of every product we offer. Our team is always available to help you find and select the perfect product.

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Under the Gun Control Act (GCA), shotguns and rifles, and ammunition for shotguns or rifles may be sold only to individuals 18 years of age or older.

US Patriot Armory abides by all state regulations regarding the sale of 80% Lowers.

It is the CUSTOMER’s responsibility to research and understand laws regarding the ordering and shipment of 80% lowers to a state region in which the customer order’s from or ships to.

If an order containing an 80% lower originates or ships to the following states or regions, the customer will be charged 18% of the total invoice amount in which the 80% lower is listed.
















US Patriot Armory abides by all state regulations regarding the sale of high capacity magazines.

It is the CUSTOMER’s responsibility to research and understand laws regarding the ordering and shipment of high capacity magazines to a state or region in which the customer order’s from or ships to.

If an order containing a high capacity magazine deemed illegal originates or ships to the following states or regions, the customer will be charged 18% of the total invoice amount in which the high capacity magazine is listed.

  • California — No magazines greater than 10 rounds.

  • Colorado — No magazines greater than 15 rounds, effective July 1st, 2013.

  • Boulder — No magazines greater than 10 rounds.

  • Connecticut — 10 Rounds and less with a valid permit.

  • Hawaii — No magazines greater than 10 rounds.

  • Illinois (North Chicago) — No magazines greater than 16 rounds.

  • Aurora, Skokie, Chicago, Evanston — No magazines greater than 15 rounds.

  • Highland Park,Cook County,Dolton,Homewood, Deerfield—No magazines greater than 10rd

  • Deerfield — No shotgun magazines over 5 rounds.

  • Maryland — No magazines greater than 10 rounds October 1st, 2013.

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  • New York — No magazines greater than 10 rounds.

  • New Jersey — No Sales

  • Vermont — No magazines over 10 rounds will be shipped as of April 13, 2018.

  • Washington D.C. — No Sales. USPA will not ship ANY items to the District of Columbia.

USPA will not ship high capacity magazines for CA customers to a High Capacity Magazine Dealer.
High Capacity Magazine Dealers in CA must place orders with USPA directly.

U.S. PATRIOT ARMORY does not under any circumstance provide legal advice or legal counsel. It is the customers’s responsibility to research their respective City, State and Federal laws in the area they are ordering from. We DO NOT provide gunsmithing advice. U.S. PATRIOT ARMORY is not responsible for improper builds, damage or injury due to user error. Experienced Gunsmith installation and proper new round break in period recommended.

Law enforcement officers must provide both their credentials and a letterhead signed by their department’s superior officer stating that the magazine will either be used in the execution of the L.E.O.’s duties, or off duty. USPA only recognizes City Police Officers, County Sheriff Deputies, and State Police (including Highway Patrol) as L.E.O.’s.

CALIFORNIA WARNING: Proposition 65 Disclaimer Proposition 65, officially known as the Safe Drinking Water and Toxic Enforcement Act of 1986, requires businesses to inform California consumers about exposures to specified chemicals prior to purchase. Listed below are the products we offer that are subject to California’s Proposition 65 based on notifications we have received from our manufacturers. You may also download this list which includes the warning message via our download files which can be found online in the “Dealer’s Toolbox” under “Available Downloads”. This list will be updated regularly as we receive additional information from manufacturers. Please visit www.p65warnings.ca.gov for additional information regarding your obligations under Proposition 65.

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