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What type and rating of materials are used? 7075-T6 aluminum like a normal upper? fiber reinforced resins or just extruded polymer? What density? — 1 Answer

by Shooter, from OK, United States Asked on May 15, 2020

Name American Tactical Imports AR-15 Stripped Poly Hybrid Upper Receiver (3.5)
$67.43 $45.49 Save 33%
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Answered by Armando R., Gear Expert, from IL, United States, on December 22, 2020

None of that information is provided by the manufacturer and you would have to reach out to them to see if they would disclose that information. This is all the information provided by American Tactical Imports:

Accepts standard mil-spec parts
Multi-Caliber: 5.56mm, 300BLK, 22LR, 6.8 SPC and others
Material: Polymer w/Insert
Patented Metal-reinforced polymer upper receiver
Lightweight with durability of a forged aluminum upper
Metal insert to reinforce critical areas of the upper
Only 1/2 a pound! (7 ounces)

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