Original Colt M16A1 GI Parts Kits

Item Number
11 reviews Write a Review




Finally obtained a limited batch of Original Colt M16A1 Part Sets. Sight assembly and barrel parts were carefully stripped as barrels are prohibited from import by ATF regulations. All parts are original Colt mfg. Parts are generally in good shape, but show wear and blemishes from 50 years of storage & usage. All parts included except barrel, barrel extension, lower receiver, auto sear and magazine. Upper receiver and bolt carriers are assembled. This is like being thrown back in time to the Vietnam era. Gotta move quickly on these as we have only so many left. We have just acquired our last buy on these… and gone will be gone. 


Original Colt M16A1 parts kit made in the 1980’s. Each kit features the triangular handguard, the teardrop forward assist and original bolt carrier group. All bolt carriers will have the "C" for Colt stamped on the bolt carrier groups. Each kit comes with all parts. All you need to complete your rifle build is a barrel and a stripped lower receiver. This is the only chance to get original vintage Colt kits. Condition is good. Barrel, and Lower Receiver - not included. 
Front sight assembly is in kit.

A GRADE KIT  (We choose not to sell the lower grade kit) – Stock in serviceable condition. You may choose your triangular handguard set: Either a fair to good condition (that comes with the kit – may have cracks or missing teeth) OR you may have a brand new production copy of the original triangular handguards (please specify when ordering) 

FREE with each kit: a brand new original Colt G.I. right hand triangular handguard, compliments of Sarco! Please note, there will be some degradation of the butt plate and original handguards (you have the choice to keep the original handguards with the kit or opt for new production replacements instead).





Kit will include one (1) of each of the following items:
Bird Cage Flash hider
Bolt & Carrier Assembly
Bolt Catch
Bolt Catch Pin
Bolt Catch Plunger
Bolt Catch Spring
Buffer Retainer
Buffer Retainer Spring
Buttstock Assembly
Charging Handle Assembly
Complete Upper Receiver
Flash Hider Lock Washer
Forward Assist Assembly
Front Pivot Pin
Front Pivot Pin Detent
Front Pivot Pin Detent Spring
Front Sight Assembly
Front Sight Tapered Pins x 2
Gas Tube
Gas Tube Pin 
Hammer Pin
Hammer with spring
Handguard (Left)
Handguard (Right)
Handguard Slip Ring Assembly with Barrel Nut
Magazine Catch
Magazine Catch Button
Magazine Catch Spring
Pistol Grip
Rear Sight
Receiver Extension/Buffer Tube
Recoil/Action Spring
Screw and Star Washer for Pistol Grip
Selector Detent
Selector Detent Spring
Takedown Detent
Takedown Detent Spring
Takedown Pin
Triangle Handguard Cap
Trigger Guard Assembly
Trigger Guard Roll Pin
Trigger Pin
Trigger with spring



11 Reviews

  • 4
    The kits are complete with original handguards. After marked barrel is avaialable but must be drilled for the factory FSB taper pins. Kits show different levels of wear. One I bought had visible signs of hard use and the other was a grade 6. The

    Posted by James Kastelz on Mar 18th 2020

    Overall this is a good buy. Sarco includes a after market barrel at a fair price. Overall I am very pleased with this M16A1 kit purchase and other kits I have bought in the past. Their customer service is very attentive and polite.

  • 3

    Posted by Van Hamby on Mar 11th 2020

    Pleased with everything but the handguards. The handguards are toast and are on the way to the landfill. Better opt for the new handguards with this kit.

  • 5
    Love it

    Posted by Robert Babcock on Feb 21st 2020

    Recieved a A kit.
    All parts included.
    They even send a non cracked butt pad as a extra for me..
    Im very satisfied.
    Would buy again..

  • 5
    Nam era Colt AR-15 parts

    Posted by Hawk Hawkins on Feb 21st 2020

    Good deal and quick ship! My gunsmith has the kit and is building the full gun!

  • 5
    Colt M16A1 Parts Kit

    Posted by AgrippaKC on Jan 14th 2020

    This parts kit was amazing. I have built the M16A1 retro rifle I have always wanted. There are modern repros out there but nothing beats the genuine colt parts. The best part was that everything was basically broke in. The action works flawlessly, the trigger breaks crisp. I only ended up missing one small spring and all the teeth on the hand guard were present.

  • 5
    • Colt M16A1 GI Parts Kits - A GRADE KIT

    Posted by Chris Means on Dec 10th 2019

    Great parts kit! Everything listed was complete and shipped fast. I have put it together except the barrel and I am looking forward to taking to the range.

  • 4
    Colt M16A1 GI parts kit

    Posted by Gary Porter on Dec 9th 2019

    Received kit not too long of wait. Kit included all parts advertised.

  • 4
    M16A1 Grade "A" kit

    Posted by David Barnett on Dec 6th 2019

    It's a decent kit for the price. It'll build into a good truck gun or beater rifle. Definitely been there and seen it, but is still fully useable.

  • 3
    Grade A M16a1 parts kit.

    Posted by ward haines on Dec 4th 2019

    Look closely at the picture of the kit that they show. That is what you get. The description they give fairly describes what the kit will look like.
    I bought two "Grade A" kits and cosmetically were pretty beat up. There is a lot of finish wear on both receivers and the furniture is very dinged up and missing teeth. The missing teeth was mentioned in the description though so was to be expected..
    Both kits included a brand new replacement butt plate to replace the existing cracked one so that was a plus. And each kit came with an extra right side heat shield. I believe the butt plate and heat shield are new old stock GI parts.
    I haven't built them yet but it looks like all parts are there.
    I caught the kit on sale so the kits are OK for the price.
    I'll redo the receiver's finishes and am sure I'll be happy with the results.