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can this be used for 6.5 grendel — 1 Answer

by jim, from MD, United States Asked on November 1, 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

These are the specifications provided by ATI:

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)

As you can see they do list most calibers that can be used in an AR-15 upper.

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