The History

Soldier of The 101st Airborne Division with his M16A1

Operation “Cook” September 8th 1967

Quang Ngai Province - Republic of Vietnam

President John F. Kennedy

Inspects an M16 in the Oval Office April 19th 1963

Washington D.C. - United States

Build Log:

M16A1 / XM16E1 - Replica

Model 603

“Rifle, Caliber 5.56 mm, M16" adapted from the ArmaLite AR-15, initially developed in 1956.

Caliber - 5.56x45 NATO / .223 Remington

Overall Length - 38.75 Inches / 98.425cm

Weight - 10.25 LBS / 4.65 Kg

Notes: Loaded - 20 Round Magazine, Sling, M203 Attached & In-Stock Cleaning Kit

Parts Specifications:

Barrel

M16A1 Barrel Assembly

Length - 20 Inches

Profile - Pencil

1:7 Rifling Twist

Rifle Barrel Extension

Manufacturer - Harrington & Richardson

Notes: Chrome bore; 1/2x28 Thread

Muzzle Device‍

3 Prong Duckbill / Type 2 Flash Hider

Manufacturer - Linemount

Notes: 5.56; 1/2x28 Thread

Gas Tube

Rifle Length Gas Tube

‍Manufacturer - Palmetto State Armory

Upper Receiver‍

M16A1 Complete Upper Receiver‍

Rifle Feed Ramps

‍Manufacturer - RangeTool

Notes: Limited Run

Charging Handle

Milspec AR-15 Charging Handle

‍Manufacturer - Palmetto State Armory

Bolt Carrier Group

5.56 Phosphate MPI Full-Auto Bolt Carrier Group

Manufacturer - Toolcraft

Notes: Chrome Lined Gas Key; Hardened to USGI Specifications

Handguard

USGI Surplus Grenadier M203

Manufacturer - AirTronic

Lower Receiver‍

Stealth Lower Receiver

Manufacturer - Anderson Manufacturing

Notes: A2 Profile - Incorrect

Fire Control Group

ARC Fire 3-Position Fire Control Group

Manufacturer - AS Designs

Notes: Safe, Semi-Auto, Full Semi-Auto

Lower Parts Kit

AR-15 Milspec Lower Parts Kit

Manufacturer - KAK Industry

Receiver Extension Assembly

Rifle Length Buffer Tube

Rifle Length Buffer Spring

Rifle Length Buffer

Manufacturer - LUTH AR

Notes: Buffer Weight: 5.1 oz

Pistol Grip‍

Bakelite A1 Grip

Manufacturer - Colt

Stock‍

USGI Surplus

Manufacturer - Colt

Notes: Type E Trapdoor

Stock Screw

A1 Length Stock Screw

Manufacturer - Linemount

Magazine

USGI Style 20-Round Magazine

Manufacturer - Mora Arms

Attachments / Accessories

Butt Stock Cleaning Kit

USGI Surplus

Manufacturer - DevilDogDepot

Grenade Launcher

Colt M203 40MM Replica

Manufacturer - Cybergun

Sling

USGI GP Strap & Paracord

Tools Used / Recommended Tools

Bench Vice

Notes: Needed for holding receivers in place during assembly.

Upper Receiver Rod

Notes: Keeps barrel secure while torquing barrel nut(very important), installing muzzle devices and keeps upper receiver stable while installing sights/optics.

Handguard Tool

Notes: Makes install & removal of handguards far easier on rifles with Slip & Delta rings.

Lower Receiver Vise Block

AR-15 Armorer's Wrench

Notes: Needed for barrel nut and buffer tube installs, helps with muzzle devices that are compatible.

Torque Wrench

Notes: Needed for installation of barrel nut.

Pin Starter Punch Set

Notes: Helps with installing trickier roll pins such as bolt catch or trigger guard.

Pin Punch Set

Center Punch Set

Notes: Needed for staking endplates / castle nuts on carbine buffer tubes.

Takedown Pin Install Tool

Notes: Greatly decreases the difficulty of installing front takedown pins without losing detents / springs.

3/16" Hex T-Handle Wrench

Notes: Allows easy access for removal & installation of pistol grips ensuring proper torque for installation.

Snap Ring Pliers

Notes: Needed for indexing snap ring that holds Slip / Delta ring while installing gas tube into upper receiver on milspec barrel nuts.

5.56 NATO Headspace Gauges

Notes: Used for ensuring proper chamber headspace between your bolt and barrel.

A list of parts and tools used can be found below. For those who want to build their own M16A1.