You are here: Home > AR-15 Components > Upper Parts > A2/Flat Top Parts

AR 15 Upper Parts from Del-ton, Inc.

Our upper parts selection includes A2 rear sight parts, ball bearings, assist springs and much more. These pieces are made in the U.S from top quality materials by Del-ton, Inc and all of the products in this category are mil-spec upper parts made for us with flat top, A3 and A2 upper receivers. Please refer to the diagram below to learn more about the specific parts and locations for your rifle and feel free to contact us with any questions!

Sort By:
Page of 1
AR15 Upper Receiver Parts Kit AR-15 Rear Sight Windage Knob AR-15 Rear Sight Springs
AR-15 Rear Sight Spring
Our Price: $0.75
AR15 Upper Receiver Parts Kit includes commonly replaced parts for upper receivers. (Part 3) Rear Sight Windage Knob (Parts 4 & 13) Rear Sight Springs.
AR-15 Rear Sight Ball Bearings AR-15 Rear Sight Windage Knob Screw AR-15 Rear Sight Aperature - A2
(Parts 5 & 12) Rear Sight Ball Bearing, 3 required (Part 6) Rear Sight Windage Knob Screw (Part 7) A2 Rear Sight Aperature
AR-15 Rear Sight Flat Spring AR-15 Rear Sight Base - A2 AR-15 Rear Sight Elevation Knob Spring
(Part 8) A2 Rear Sight Flat Spring (Part 9) A2 Rear Sight Base (Part 11) Rear Sight Elevation Knob Spring
AR-15 Rear Sight Index Screw - A2 AR-15 Rear Sight Index Elevation AR-15 Ejection Port Cover Hinge Pin Clip
(Part 14) A2 Rear Sight Index Screw (Part 15) Rear Sight Index Elevation
8/3 Elevation Adjustment
(Part 17) Ejection Port Cover Hinge Pin Clip
AR-15 Ejection Port Cover Pin AR-15 Ejection Port Cover Spring AR-15 Ejection Port Cover
(Part 18) Ejection Port Cover Pin (Part 19) Ejection Port Cover Spring (Part 20) Ejection Port Cover
AR-15 Ejection Port Cover Assembly AR-15 Forward Assist Pin AR-15 Forward Assist Assembly - Round
(Part 20) Ejection Port Cover Assembly. (Part 21) Forward Assist Pin (Part 22) Round forward assist assembly
AR-15 Forward Assist Spring
(Part 23) Forward Assist Spring