Your basket is empty.

Basket

Help and contact

Free standard delivery over £199

100-day return policy

Newsletter

Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

BROWNELLS
AR-15/M16 CRITICAL TOOLS KIT

050806108578 080000812

Description
Ratings (11)

Essential Tools Needed To Build, Customize Or Rebarrel Any AR-15

Convenient kit has essential tools you need to build, repair, or modify a custom AR-15/M16 rifle - without duplicating the common tools you already have. Includes our top-quality Brownells Armorer's Wrench, necessary for installation and removal of any barrel with either encapsulated or peg-style barrel nuts. Also has wrenches for flash hiders, M4-style castle nut, and A2 buffer tube nut. Lower Receiver Vise Block snaps into the magwell just like a magazine to provide a secure clamping surface for a vise without risk of damaging or distorting the receiver. Heavy-duty clamshell Upper Receiver Action Block lets you clamp the upper in a vise to remove or install the barrel or perform other work without crushing, twisting, or damaging it. Fits carry handle and flattop receivers. Two pivot pin tools: one retracts the spring-loaded detent, so you can remove the pivot pin completely from the receiver; the other retains the detent and spring while installing the pivot pin. Bolt Catch Pin Punch has a flat handle that clears the left side of the magwell for easy removal of the bolt catch pivot pin by driving it to the rear. DO NOT USE ON BILLET UPPERS OR DAMAGE TO THE UPPER CAN RESULT.

SPECS: Armorer’s Wrench - Investment cast steel, black finish. Fits barrels up to 1-1/4” O.D. Lower Receiver Vise Block - High-density urethane plastic, black. Receiver Action Block - Injection-molded Rynite, black. Fits A1, A2, and standard flattop receivers. Pivot Pin Detent Tools/Bolt Catch Pin Punch – Steel, black oxide finish.

More...

Customer ratings for BROWNELLS AR-15/M16 CRITICAL TOOLS KIT

Number of ratings: 11
From brownells.com: 11
Average rating: 4.4

Close, But Not Quite Right (16/12/2010)

Despite a clarification call to Brownell's tech, the upper receiver block in this kit will NOT hold my upper receiver. Mr Zediker said as much in his book. I neglected to mention to the tech that I have a MACHINED, flat-top receiver. My fault! I'll now order item 231-000-157 so that I might proceed with my project.

The lower receiver block "required some fitting" but was made to work. The wrench is very good! Read Zediker's "The Competitive AR15 Builder's Guide", available here at Brownell's, BEFORE purchasing tools.

Must have servicing or building your AR (12/04/2011)

I have used this set to upgrade three of my Ar 15 rifles. I have to say this set is great. I highly recommend to anybody who wants switch out receivers barrles ect. Also very useful for general maintenance.

Excellent tool kit (12/02/2012)

This is a fantastic tool kit. If you own an AR you should have this kit if you intend to do any work on it. It's by no means an all inclusive kit but it's a great starting point.

The wrench is top quality, the upper and lower blocks fit nicely and are easy to use, the punches are durable.

Buying these tools together will save you quite a bit of money. They are all built well and will ast a very long time. Highly recommended for AR owners.

GREAT KIT! (07/03/2012)

Great kit been needing one for awhile and now i wont have to borrow a kit. Made enough money on the first couple of jobs to make to cost of the kit and still make money. iwork on alot of AR platform rifles being a Police Armorer this setup is the [*]! Best kept to pros and out of the hands of Novices from OH.....haha

Pricey, but I'm cheap. (15/03/2012)

I had to wait a while for this on back-order, but it finally arrived. I like the fact that Brownell's sends email notifications when they ship your items and they include tracking info so I kjnow when to expect the package to arrive.

The Pivot Pin Detent Depressor is only an allen wrench with an angle ground into the small "L" end and can be easily made on your own.

The Pivot Pin Detent Installation Tool can also be made with the proper size bar stock. Simply cut to length, bend a 90* angle and drill the hole in the end of the tool.

If you don't want to spend the time making these two tools, then this is the way to go. I wish the price was lower for the whole thing or maybe they could include a delta ring depressor for some added value? Overall, I suppose the convenience was worth the expense.

The action block piece was very tight in the mag well of three receivers I tested it in, but five minutes with a file took care of it.

The armorer's wrench will not fit over the crush washer to get a flash hider off, so looks like I'll be taking the Dremel to the wrench to narrow its profile a little.

MUST HAVE KIT FOR AR OWNERS (24/04/2012)

Again Brownells has made my job easier with this "critical tool kit" living in New York and with hardly any gun shops to purchase these types of accessories (not being able to hold product in my own hands) I can rely on Brownells on great Quailty items such as this critical tool kit ,

Good kit (04/08/2012)

Gave it four stars based mainly on the Smith Enterprises armorers wrench. The non-pin side of the wrench just would not completely flush fit the barrel nuts on three pre-ban Bushmasters, it did grab enough to allow removal of the nuts. The pin side did fit but tore a couple of the barrel nut protrusions. The pin side did fit and properly, without damage, install the YHM Diamond Pattern Handguard barrel nuts.

The upper receiver Action Block worked great as did the lower receiver vise block. The remaining tools were bonuses to me to be used later as needed.

Can't beat the price! (07/09/2012)

This is a very good kit. Buy everything separate and you'll pay double. I use this kit for my AR's a lot. Everything you get in this kit, you will get every penny out of it and then some. I broke the wrench on the first turn. Tooth chipped at the end. I called Brownell's and they shipped one out to me free. They told me to just keep the old one which still has plenty of other uses to it. Their customer service is top notch. Good luck competitors, you'll need it!

Building an AR? Get this kit. (05/12/2013)

You'd pay this much for the blocks alone. The pin tools make installation a snap instead of launching detents across the room and inducing swearing. Be careful with the pin punch. Even though it is cut out for receiver clearance, it will mess up the finish if you're not careful. Masking tape might be a good idea.

Perfect Kit! (21/01/2014)

The entire kit works great, just as it's supposed to. Makes everything about putting your AR together much easier.

Nice, but missing important tool (16/06/2014)

I mostly just bought it for the vice blocks because this kit is only slightly more than the blocks set alone, but there are some other helpful tools included. A few of the tools are not something you'd generally buy or really need (can make do with normal hand tools), but have come in handy on my two builds.

My one complaint is that it does not include a castle-nut/stock wrench for the buffer tube. This is often built into the armorer's tool, but this one does not have that feature. It's my fault because I didn't think to check, I just assumed a "critical tool kit" would include the tool to tighten or loosen this unique fastener. The armorer's tool also came out of it's bag with some minor surface rust on it, it did not appear to have been given any oil coating from the factory.

Read 11 more ratings on brownells.com

154.9 154.9 1 GBP

Product no.: 080000812
BROWNELLS AR-15/M16 CRITICAL TOOLS KIT 050806108578 Convenient kit has essential tools you need to build, repair, or modify a custom AR-15/M16 rifle - without duplicating the common tools you already have. Includes our top-quality Brownells Armorer's Wrench, necessary for installation and removal of any barrel with either encapsulated or peg-style barrel nuts. Also has wrenches for flash hiders, M4-style castle nut, and A2 buffer tube nut. Lower Receiver Vise Block snaps into the magwell just like a magazine to provide a secure clamping surface for a vise without risk of damaging or distorting the receiver. Heavy-duty clamshell Upper Receiver Action Block lets you clamp the upper in a vise to remove or install the barrel or perform other work without crushing, twisting, or damaging it. Fits carry handle and flattop receivers. Two pivot pin tools: one retracts the spring-loaded detent, so you can remove the pivot pin completely from the receiver; the other retains the detent and spring while installing the pivot pin. Bolt Catch Pin Punch has a flat handle that clears the left side of the magwell for easy removal of the bolt catch pivot pin by driving it to the rear. DO NOT USE ON BILLET UPPERS OR DAMAGE TO THE UPPER CAN RESULT.

154.9 GBP 102 £154.90 *

Delivery time approx. 7-14 days.
More than 10 pieces in USA warehouse

Specs: Make: AR-15

Add to shopping list

Ask question

Details

Add to shopping list

Ask question

Top takeaways

The kit includes essential tools for building, repairing, or modifying AR-15/M16 rifles, such as the Brownells Armorer's Wrench and tools for various nuts and flash hiders.
It contains specialized tools for secure clamping, like the Lower Receiver Vise Block for the magwell and the Upper Receiver Action Block for barrel work, without damaging the receiver.
Additional tools provided are two pivot pin tools for the removal and installation of pivot pins and a Bolt Catch Pin Punch designed to avoid magwell obstruction.