# ATI MilSport .450 Bushmaster Semi-Auto Rifle, 16" Barrel, Black

**Brand:** American Tactical Imports
**Category:** Semi-Automatic Rifles
**Caliber:** .450 Bushmaster

## Specifications

- **Caliber:** .450 Bushmaster
- **Barrel Length:** 16"
- **Capacity:** 5 rounds
- **Finish:** Black
- **Weight:** 83.2 oz
- **Overall Length:** 52"
- **UPC:** 819644021643
- **SKU:** UCEQg2mfD

## Description

The ATI MilSport is a semi-automatic rifle chambered in .450 Bushmaster, built on an AR-pattern platform with an aluminum receiver and black Parkerized finish. At 5.2 lbs it is lighter than most rifles in this caliber class.

### Key Specifications
- **Brand:** ATI
- **Model:** Mil-Sport
- **Caliber:** .450 Bushmaster
- **Barrel Length:** 16 inches
- **Capacity:** 5+1 rounds
- **Action:** Semi-Auto
- **Sights:** Picatinny Rail (no standard sights included)
- **Weight:** 5.2 pounds
- **Finish:** Black Parkerized
- **Receiver Material:** Aluminum
- **Twist Rate:** 1:24"

### Detailed Features

The .450 Bushmaster delivers substantial terminal performance in a package that fits standard AR lowers, which is the main reason this caliber exists: deer hunting in states with straight-wall cartridge requirements, and hog hunting where stopping power matters at woods distances.

The Picatinny rail across the top lets shooters mount whatever optic suits the application, whether a low-power variable or a simple red dot. There are no iron sights included. The semi-auto action gives faster follow-up shots than a bolt gun, though the 5+1 capacity reflects the .450 Bushmaster's larger case diameter.

The aluminum receiver keeps weight down. The Parkerized finish is serviceable in wet field conditions.

### Usage Scenarios

The MilSport in .450 Bushmaster is primarily a hunting rifle: deer, hogs, and similar game at ranges where the big bore's trajectory is not a liability. It also works for range use where the .450 Bushmaster's recoil characteristics are part of the practice session.

## Frequently Asked Questions

**Q: What caliber is the ATI Mil-Sport?**

A: The ATI Mil-Sport is chambered in .450 Bushmaster.

**Q: Who makes the ATI Mil-Sport?**

A: The Mil-Sport is made by ATI (American Tactical Imports).

**Q: What type of firearm is the ATI Mil-Sport?**

A: It is a semi-automatic rifle built on an AR-pattern platform.

**Q: What is the barrel length of the ATI Mil-Sport?**

A: It has a 16-inch barrel.

**Q: How many rounds does the ATI Mil-Sport hold?**

A: It has a 5+1 capacity.

**Q: What finish does the ATI Mil-Sport have?**

A: It has a black Parkerized finish on an aluminum receiver.

**Q: Where can I buy the ATI Mil-Sport?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the ATI MilSport in .450 Bushmaster generally give it positive marks for reliability and value at its price point. The .450 Bushmaster stopping power gets consistent praise from hunters, and accuracy reports at typical hunting distances are good.

Build quality is described as solid overall, though a few users note minor fit and finish issues or components they would replace for a cleaner setup. The platform is easy to customize since it follows standard AR conventions, and owners discuss optic choices and accessories as natural next steps.

The main practical complaints are about .450 Bushmaster ammunition availability and cost. It is less common than .223 or .308, which matters for practice-volume shooters. Ergonomics get mixed feedback. The weight and balance work fine for most, but some wish for a different stock option.

Customer service experiences with ATI vary in reported discussions. Most users describe satisfactory support; a smaller number mention delays. Worth knowing before buying.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Gunbuyer Com | $618.48 |

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*Data from [GunsNation](https://gunsnation.com)*