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AR-15/M4 Product Instructions

(71 video/articles)
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Changing An AR-15 Barrel
Changing An AR-15 Barrel

This video provides a demonstration how to change a barrel on an AR-15 or M-16.

Installing A Two Piece Four Rail Handguard
Installing A Two Piece Four Rail Handguard

This video provides a demonstration how to change install a 2 piece handguard with Picatinny rails on an AR-15, M-16.

Installing A Free Float Handguard
Installing A Free Float Handguard

This video provides a demonstration how to install a free float handguard.

Installing the Front Sight and Sling Swivel
Installing the Front Sight and Sling Swivel

This video clip demonstrates the installation of the the front sight post and sling swivel that is held in place with a rivet.

Proper Bolt Disassembly & Cleaning With Our Ejector Tool
Proper Bolt Disassembly & Cleaning With Our Ejector Tool

This video provides a demonstration proper bolt disassembly with the Brownells ejector tool.

Changing A Gas Block
Changing A Gas Block

This video provides a demonstration of how to change a gas block on an AR-15 or M-16.

AR-15 Proper Cleaning of Carrier With Brownells Scraper
AR-15 Proper Cleaning of Carrier With Brownells Scraper

This is a video demonstration of AR-15 Proper cleaning of carrier with Brownells scraper.

Brownells AR-15/M-16 Magazine Maintenance
Brownells AR-15/M-16 Magazine Maintenance

This is a video demonstration of how to maintain and inspect your Brownells AR-15/M-16 Magazines.

AR-15 Magazine Rebuilding/Spring & Follower Replacement
AR-15 Magazine Rebuilding/Spring & Follower Replacement

This video provides a demonstration how to rebuild an AR-15/M-16 magazine.

Changing Standard Butt Stock To Collapsible
Changing Standard Butt Stock To Collapsible

This video provides a demonstration of how to change a standard AR-15/M16 buttstock to a collapsible one.

AR-15 Muzzle Brakes and Flash Hiders
AR-15 Muzzle Brakes and Flash Hiders

This video is a demonstration on how to install, and the difference between muzzle brakes/flash hiders.

Introduction to AR-15 Triggers
Introduction to AR-15 Triggers

This video segment is a discussion about the AR-15 trigger and the reasons for replacing one with an aftermarket version.

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M16 Pivot Pin Detent Depressor
M16 Pivot Pin Detent Depressor

The Upper Receiver Assembly of the M16 rifle is secured to the Lower Receiver by a Take Down Pin at the rear of the Receiver and by a Pivot Pin located at the extreme forward end of the Receiver.

AR-15/M16 Taper Pin Starter
AR-15/M16 Taper Pin Starter

The front sight on the AR-15/M16 is secured to the barrel by two tapered pins. These pins are driven into the front sight from the right side of the rifle (as viewed from the rear), and are often very firmly seated.

1/2" & 3/8" Square Drive Torque Wrench
1/2" & 3/8" Square Drive Torque Wrench

Various components of the AR-15/M16 rifle are assembled with specific amounts of pressure or torque. Less torque than is recommended by the manufacturer could result in a loose or insecure component; excessive torque might damage the parts.

M16 Pivot Pin Detent Installation Tool
M16 Pivot Pin Detent Installation Tool

The M16 and many commercial clones of the AR-15 use a Pivot Pin secured in the Lower Receiver by a spring-loaded detent to join the Upper and Lower Receiver assemblies. Brownells M16 Pivot Pin Detent Installation Tool is designed to make installation of the Pivot Pin, the Pivot Pin Detent and Detent Spring quick and easy.

AR-15/M16 Bolt Catch Pin Punch
AR-15/M16 Bolt Catch Pin Punch

This specially designed punch removes the bolt catch pin from the lower receiver magazine housing with virtually no chance of damaging either part. Please note there is a projection, or vertical ridge, slightly forward of the bolt catch, over the magazine well.

AR-15/M16 Firing Pin Protusion Gauge
AR-15/M16 Firing Pin Protusion Gauge

Proper Firing Pin protrusion is essential to help avoid misfires and to ensure reliable functioning in the AR-15/M16 Rifles. The Brownells AR- 15/M16 Firing Pin Protrusion Gauge is designed to enable the armorer or gunsmith to quickly and easily check these rifles on this critically important point.

AR-15/M16 Combination Wrench
AR-15/M16 Combination Wrench

The AR-15/M16 Combination Wrench helps the armorer or gunsmith repair AR-15/M16 rifles and their clones. This tool, is designed for use with current production AR-15/M16 rifles.

AR-15/M16 Barrel Vise Jaws
AR-15/M16 Barrel Vise Jaws

These non-marring aluminum vise jaws are designed to be used in a machinist vise to hold an AR-15/M16 barrel tightly and correctly when installing/ removing the flash suppressor or the barrel itself.

AR-15/M16 Barrel Nut Alignment Gauge
AR-15/M16 Barrel Nut Alignment Gauge

The AR-15/M16 Barrel Nut Alignment Gauge facilitates the proper positioning of several components when installing the barrel onto the upper receiver. The barrel of the AR-15/M16 is secured to the upper receiver with a threaded barrel nut.

AR-15/M16 A1 & A2 Sight Tools
AR-15/M16 A1 & A2 Sight Tools

The AR-15/M16 Sight Tools make movement of sight adjustments much easier and quicker than the field method using the point of a bullet. The A1 Sight Tool, designed for the AR-15/M16A1, has five prongs on the end of the small tube that extends down over the Front Sight.

AR-15/M16 Armorer
AR-15/M16 Armorer's Kit

Your new Armorer’s Kit contains the most comprehensive group of repair and maintenance tools ever offered to the Armorer and Gunsmith for working on the AR-15/M16.

Colt 5.56 (.223) Headspace Gauge for AR-15/M16
Colt 5.56 (.223) Headspace Gauge for AR-15/M16

Proper headspace is of critical importance for the safe and proper functioning of the Colt AR-15/M16 rifle. Insufficient headspace can prevent proper bolt lockup while excessive headspace may lead to cartridge case separations or misfires.