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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!

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AR-15 A2 Rear Sight Assembly
AR-15 A2 Rear Sight Assembly
(Part 1) A2 rear sight assembly.

Our Price: $38.00 Out of Stock
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AR-15 A2 Rear Sight Windage Knob Spring Pin
AR-15 A2 Rear Sight Windage Knob Spring Pin
(Part 2) A2 Rear Sight Windage Knob Spring Pin

Our Price: $0.75
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AR-15 Rear Sight Windage Knob
AR-15 Rear Sight Windage Knob
(Part 3) Rear Sight Windage Knob

Our Price: $6.00
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AR-15 Rear Sight Springs
AR-15 Rear Sight Spring
(Parts 4 & 13) Rear Sight Springs.

Our Price: $0.75
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AR-15 Rear Sight Ball Bearings
AR-15 Rear Sight Ball Bearing
(Parts 5 & 12) Rear Sight Ball Bearing, 3 required

Our Price: $0.50
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AR-15 Rear Sight Windage Knob Screw
AR-15 Rear Sight Windage Knob Screw
(Part 6) Rear Sight Windage Knob Screw

Our Price: $3.50
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AR-15 Rear Sight Aperature - A2
AR-15 Rear Sight Aperature - A2
(Part 7) A2 Rear Sight Aperature

Our Price: $6.95
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AR-15 Rear Sight Flat Spring
AR-15 Rear Sight Flat Spring
(Part 8) A2 Rear Sight Flat Spring

Our Price: $0.95
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AR-15 Rear Sight Base - A2
AR-15 Rear Sight Base - A2
(Part 9) A2 Rear Sight Base

Our Price: $17.50 Out of Stock
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A2 Rear Sight Elevation Knob Spring Pin
AR-15 A2 Rear Sight Elevation Knob Spring Pin
(Part 10) A2 Rear Sight Elevation Knob Spring Pin

Our Price: $0.95
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AR-15 Rear Sight Elevation Knob Spring
AR-15 Rear Sight Elevation Knob Spring
(Part 11) Rear Sight Elevation Knob Spring

Our Price: $0.95
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AR-15 Rear Sight Index Screw - A2
AR-15 Rear Sight Index Screw - A2
(Part 14) A2 Rear Sight Index Screw

Our Price: $1.75
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AR-15 Rear Sight Index Elevation
AR-15 Rear Sight Index Elevation
(Part 15) Rear Sight Index Elevation
8/3 Elevation Adjustment

Our Price: $5.75
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AR-15 Rear Sight Elevation Knob
AR-15 Rear Sight Elevation Knob
(Part 16) Rear Sight Elevation Knob

Our Price: $6.50
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AR-15 Ejection Port Cover Hinge Pin Clip
AR-15 Ejection Port Cover Hinge Pin Clip
(Part 17) Ejection Port Cover Hinge Pin Clip

Our Price: $0.50
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AR-15 Ejection Port Cover Pin
AR-15 Ejection Port Cover Pin
(Part 18) Ejection Port Cover Pin

Our Price: $1.50
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AR-15 Ejection Port Cover Spring
AR-15 Ejection Port Cover Spring
(Part 19) Ejection Port Cover Spring

Our Price: $0.75
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AR-15 Ejection Port Cover
AR-15 Ejection Port Cover
(Part 20) Ejection Port Cover

Our Price: $5.75
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AR-15 Ejection Port Cover Assembly
AR-15 Ejection Port Cover Assembly
(Part 20) Ejection Port Cover Assembly.

Our Price: $6.50
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AR-15 Forward Assist Pin
AR-15 Forward Assist Pin
(Part 21) Forward Assist Pin

Our Price: $0.75
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AR-15 Forward Assist Assembly - Round
AR-15 Forward Assist Assembly - Round
(Part 22) Round forward assist assembly

Our Price: $11.25
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AR-15 Forward Assist Spring
AR-15 Forward Assist Spring
(Part 23) Forward Assist Spring

Our Price: $0.75
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