steps for the Colt AR-15 also apply to the following guns:
Colt AR-15 Collapsible Stock Model
Colt AR-15A2 Carbine
Colt AR-15A2 HBAR
Colt AR-15A2 Government Model Target
Colt Sporter Lightweight Rifle
Colt Sporter Match Delta HBAR
Eagle Arms EA-15
Olympic Arms AT-15 Service Match
Colt AR-15A2 Sporter II
Colt AR-15A2 Delta HBAR
Colt AR-15 Delta HBAR Match
Colt AR-15A2 Government Model Carbine
Colt Sporter Target Model
Colt Sporter Match HBAR
Olympic Arms AR-15 Heavy Match
Olympic Arms CAR-15
| Data: | Colt AR-15 |
| Origin: | United States |
| Manufacturer: | Colt FirearmsHartford, Connecticut |
| Cartridge: | 223 Remington (5.56mm) |
| Magazine capacity: | 5 and 20 rounds |
| Overall length: | 38-⅜ inches |
| Barrel length: | 20 inches |
| Weight: | 7-¼ pounds |
The original AR-15A1, made from 1963 to 1984, did not have the bolt forward-assist plunger and spring on the right side of the receiver, as on the M-16 military gun. All AR-15A2 rifles, up to the present, have this feature. The plunger is retained by a pin, and removal is a simple operation that will require no additional instructions.
Disassembly:
1. Remove the magazine, and cycle the action to cock the hammer. Push out the takedown pin, located at the upper rear of the grip frame, toward the right.
2. With the takedown pin stopped in pulled-out position, tip the barrel and receiver assembly upward at the rear.
3. Use the charging handle to start the bolt assembly toward the rear, and remove the assembly from the rear of the receiver.
4. Move the charging handle to the rear until it stops, then move it out the rear of the receiver.
5. The charging handle latch and its spring are retained in the handle by the vertical roll pin. In normal takedown, it is best left in place.
6. Use a small tool to pull out the cotter pin on the left side of the bolt carrier, to free the firing pin.
7. Remove the firing pin toward the rear.
8. Rotate the bolt cam pin to clear its flange from beneath the edge of the overhang, and remove the bolt cam pin upward.
9. Remove the bolt from the front of the bolt carrier.
10. The extractor and its coil spring are retained in the bolt by a cross pin which is easily pushed out in either direction.
11. The ejector and its spring are also retained by a pin, a small roll pin that crosses the front of the bolt. The ejector spring is quite strong, so restrain the ejector during removal.
12. The gas cylinder is retained by two Allen screws on top of the bolt carrier, and these are heavily staked in place. CAUTION: This unit should be removed only if repair or replacement is necessary.
13. Remove the cap screw at the left end of the receiver pivot. It will be necessary to stabilize the screw-slotted head of the pivot with another large screwdriver on the right side during removal.
14. Use a slim drift punch that will not damage the interior threads to nudge the receiver pivot out toward the right, and separate the barrel and receiver unit from the stock and grip frame assembly.
15. Pull back on the grooved slip ring right at the rear of the handguard units, and alternately tip each unit outward at the rear, then remove them rearward.
16. With a wrench of the proper size, unscrew the flash hider from the end of the barrel, and take care not to lose the lock washer behind it.
17. The combination front sight base, gas port unit, and bayonet mount is retained on the barrel by two large cross pins. When these are drifted out toward the right, the unit can be nudged forward off the barrel. During removal, take care that the gas transfer tube is not damaged.
18. The gas conduit is retained in the sight unit by a roll cross pin. In normal takedown, this should not be disturbed.