Field Stripping an AR-15

Step 1: Clear the Rifle

Step 2: Remove sling. 

Step 3: Remove Handguards (only if you can see dirt or corrosion through the vent holes).  Pull back on the delta ring and pull the handguards out. 

Step 4: Push the takedown pin as far as it will go (you may use a cartridge to help). 

Step 5: Pivot the upper receiver from the lower receiver.

Step 6: Push the receiver pivot pin.

Step 7: Separate the upper and lower receivers.  

Step 8: Pull back the charging handle.  

Step 9: Remove the bolt carrier and bolt.

Step 10: Remove the charging handle. 

Step 11: Remove the firing pin retaining pin. (use a cartridge to help start it)

Step 12: Put the bolt assembly in the locked position by pushing in the bolt. 

Step 13: Remove the firing pin by allowing it to drop out of the rear of the bolt carrier into your hand.

Step 14: Remove the bolt cam pin by turning it one-quarter turn and lifting it out.

Step 15: Pull the bolt assembly from the carrier.

NOTE: Perform Steps 16 & 17 only when the parts are dirty or damaged.

Step 16a: Remove the extractor pin by pushing it out with the firing pin (use care not to damage the firing pin)

Step 16b: Lift out the extractor and spring, taking care so that the spring does not separate from the extractor. (NOTE: Press the top of the extractor to check spring function.)

Step 17a: Release the buffer by pressing the buffer and depressing the retainer.

Step 17b: Remove the buffer and action spring separating the buffer from the spring

Field Strip Completed. Do not disassemble the rifle further!