Up for sale are some spare parts that will work with AR-15, M4, M16, and all of the variants. Can be used on real guns or airsoft.

I can ship items for a small additional fee.

2 x Magpul PMag 30 Rounders $25 for both
UTG flip up rear site - $15
Command Arms M4 Stock Adjustable Cheekrest - $10
BSA LS650 Laser Site - $20
M4 Barrel Mount Side Sling Swivel - $20
Rail Mount Quick Detach Sling Swivel - $15
Airsoft Carbine Extension Sling Mount - $5
Shotgun Shell Tube Flashlight Mount - $10 SHIPPED
2 x AR-15 Grips - $15 for both
AR-15 Grip w/ Adjustable Palm Shelf - $25
UTG Black SWAT Tactical Vest - $45

I can combine items for a little better deal

Email for interest and questions...