- 7075-T6 Forged Aluminum
- Hard Coat Anodized
- M4 Feed Ramps
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I’ve probably built 20-25 guns using these uppers. They’re mil spec, affordable, and have a price on them that gives me the customer, a lot for my money and come with the guarantee that any mil spec parts I buy for it, they are going to fit without any modification to them. Thanks Ar15Discounts.com for always having the best products at the best price!!