Hi Eric and welcome to the community. The ATI Milsport AR-15 pistol features both upper and lower receivers constructed from durable, forged 7075-T6 aluminum. This aluminum construction ensures a standard, sturdy, and durable platform, which distinguishes it from the company’s polymer-based Omni Hybrid line. The unloaded weight is 7.02 lbs. Cheers, stay safe and enjoy!

Pros:
Very Affordable: Often among the cheapest AR-15s available.
Lightweight: Polymer construction makes them light, good for smaller shooters or as an ultralight build.
Decent Accuracy: Some reviewers find them accurate enough for hitting steel at decent distances, especially considering the price.
Reinforced Polymer: Hybrid models reinforce high-pressure areas (like takedown pin tabs, barrel nut threads) for increased durability.
Good Features: Often include flared magwells, mil-spec triggers (sometimes polymer but functional), and M-Lok handguards.
Cons:
Inconsistent Reliability: Some users experience malfunctions with various ammo types, while others report flawless function.
Polymer Concerns: The polymer upper and lower receivers raise durability questions for some, despite reinforcements.
Quality Control: Occasional reports of rough finishes or issues like dead triggers on some units.
Not for Heavy Use: Generally considered better for casual shooting rather than as a primary, high-reliability platform.
Key Models:
Omni Hybrid: Known for its lightweight polymer build and reinforced points; performance varies.
Milsport: A solid, budget-friendly option, considered reliable by some for its price point.
Overall Verdict:
ATI AR-15s are a "you get what you pay for" proposition; great for a first-time AR owner or someone on a tight budget who wants to get into the platform.

The upper and lower are made from an anodized aluminum material.
VISIT HERE: https://americantactical.us/product/ati-milsport-hga-5.56x45mm-7.5-barrel-18-twist-7-mlok-30rd-mag-poly-sights

Good evening to you!! The ATI milsport pistol upper and lower are made from anodized aluminum. This is a very dependable firearm. See below for more information. Hope this helps. Have a good rest of your day.
🇺🇸🇺🇸 'Merica' 🇺🇸🇺🇸
https://americantactical.us/product/ati-milsport-hga-5.56x45mm-7.5-barrel-18-twist-7-mlok-30rd-mag-poly-sights