Originally Posted by
Belmont31R
My recommendation:
1. Spare LPK
2. Spare BCG
3. Spare bolt, 2 firing pins, 2 firing pin retaining pins, 2 extractor kits, 2 cam pins, & 3 sets of gas rings.
4. Spare buffer, and 2 buffer springs.
5. USGI cleaning kit with quality lube to keep in shooting bag, case, etc.
6. 4 batteries for Aimpoints, and 10 for anything that eats a battery in less than 1k hours.
Don't have to buy everything at once. Unless you have a catastrophic failure of the weapon the above will keep you in the game for a while at least. I like to throw in several small parts with orders, and within a year you will have a good set of spare parts. I keep everything in a fishing lure box. Easy to transport, keeps things organized, and its nice to have parts on hand when you need them. You will also need a decent set of tools to work on the gun. Punches, hammer, armorers wrench, screwdrivers, etc.