# MPA Defender 5.7 Compact Pistol - 20+1 Rounds, Threaded Barrel

**Brand:** MasterPiece Arms
**Category:** Compact Handguns
**Caliber:** 5.7x28mm

## Specifications

- **Caliber:** 5.7x28mm
- **Barrel Length:** 5"
- **Capacity:** 20 rounds
- **Finish:** Black
- **Weight:** 59 oz
- **Overall Length:** 13"
- **UPC:** 784672659758
- **SKU:** UCDoVKVtG

## Description

The MasterPiece Arms Defender is a compact semi-automatic pistol chambered in 5.7x28mm with a 20+1 round capacity. The included threaded barrel (1/2x28) accepts suppressors and muzzle devices, and the adjustable sights work across varying distances.

### Key Specifications
- **SKU:** 1794001029
- **UPC:** 784672659758
- **Brand:** MasterPiece Arms
- **Model Name:** Defender
- **MPN:** 57DMG
- **Caliber:** 5.7x28mm
- **Class:** Compact
- **Action Type:** Semi-Automatic
- **Capacity:** 20+1 rounds
- **Magazines Included:** 1
- **Barrel Length:** 5 inches
- **Overall Length:** 13 inches
- **Weight:** 59 oz.
- **Sights Type:** Adjustable
- **Grip Type:** Standard
- **Trigger Type:** Standard
- **Safety Mechanism:** Lever safety
- **Finish Color:** Black matte finish
- **Condition Status:** Brand New Boxed Item

### Detailed Features

The threaded barrel (1/2x28) is included from the factory, so no barrel swap is needed to run a suppressor or compensator. Adjustable sights let shooters fine-tune for different distances, which matters in competitive settings. The aluminum frame keeps overall weight reasonable despite the 59 oz. loaded feel. The standard grip fits most hand sizes, and the lever safety is straightforward to operate. A lower Picatinny rail accepts lights or lasers without any modification.

### Target Audience

The Defender suits shooters new to the 5.7x28mm platform, experienced handgunners looking for a high-capacity option, and anyone who wants a threaded barrel without paying for a separate upgrade.

### Usage Scenarios

- Home defense: 20+1 capacity reduces reload pressure in a critical situation
- Competitive shooting: adjustable sights and light recoil favor precision events
- Small game hunting: the 5.7x28mm caliber handles it with appropriate ammunition

## Frequently Asked Questions

**Q: What caliber is the MPA Defender?**

A: The MPA Defender is chambered in 5.7x28mm.

**Q: Who makes the MPA Defender?**

A: MasterPiece Arms makes the MPA Defender.

**Q: What type of firearm is the MPA Defender?**

A: It is a compact semi-automatic pistol.

**Q: What is the barrel length of the MPA Defender?**

A: The MPA Defender has a 5-inch barrel.

**Q: How many rounds does the MPA Defender hold?**

A: It has a 20+1 capacity.

**Q: Is the MPA Defender threaded?**

A: Yes. The MPA Defender comes with a threaded barrel from the factory.

**Q: Where can I buy the MPA Defender?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

Discussions about the MPA Defender 5.7 tend to run warm but honest. The 20+1 capacity gets consistent praise, and the 5.7x28mm caliber draws real interest for its low recoil and high velocity. The compact size and comfortable handling come up often as practical advantages. The threaded barrel is a regular conversation topic: most see it as a meaningful feature that adds flexibility without extra cost. Build quality splits opinions somewhat: many report solid reliability, but occasional feeding or ejection problems with specific ammunition types show up in enough reviews to be worth noting. Ergonomics around control placement are generally positive, though a few users point to spots where the layout could be improved. The overall community tone is positive, with active owners sharing modification tips and accessory recommendations.

## Pricing

**3 offers available**

| Vendor | Price |
|--------|-------|
| Primaryarms Com | $659.99 |
| Gunbuyer Com | $682.46 |
| Grabagun Com | $946.99 |

## Similar Products

- [Defender 5.7 Carbine - Semi-Auto, 20+1, Burnt Bronze Finish](https://gunsnation.com/p/defender-5-7-carbine-semi-auto-20-1-burnt-bronze-finish/UCDoVLtNg)
- [MPA Defender TB: 9mm Semi-Auto Pistol, 17+1 Rd, Adj Sights](https://gunsnation.com/p/mpa-defender-tb-9mm-semi-auto-pistol-17-1-rd-adj-sights/UCFG9ZEVM)
- [MasterPiece Arms Defender 9mm Semi-Auto Pistol, 30+1 Rounds](https://gunsnation.com/p/masterpiece-arms-defender-9mm-semi-auto-pistol-30-1-rounds/UCBNc99Lu)
- [MPA Defender 9mm: High-Capacity Semi-Auto with Adjustable Sights](https://gunsnation.com/p/mpa-defender-9mm-high-capacity-semi-auto-with-adjustable-sights/UCEAYpNug)
- [Smith & Wesson M&P 5.7 - Optic Ready FDE/Black Pistol 22+1 Rounds](https://gunsnation.com/p/smith-wesson-m-p-5-7-optic-ready-fde-black-pistol-22-1-rounds/UCODeLTA)
- [MasterPiece Arms 30SST Defender 9mm Semi-Auto Pistol, 31-Round Capacity](https://gunsnation.com/p/masterpiece-arms-30sst-defender-9mm-semi-auto-pistol-31-round-capacity/UCEAYpNun)

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