FMJ First Defense Tactical 300 BLK 123gr Full Metal Jacket 50/Bx
$36.99 at Sportsman's Guide · 16 stores
In stock
Best price
$39.99at GunMag Warehouse
In stock Lowest in 30 dayschecked Oct 31, 2026
Fits and works with
- Caliber
- 300 Blackout · Shop matching ammo
Specifications
- Manufacturer
- Magtech Ammunition
- Caliber
- 300 Blackout
- Bullet weight
- 200 gr
- Casing
- Brass
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| GunMag Warehouse Best price | $39.99checked Oct 31, 2026 | In stock | Buy at GunMag Warehouse | |
| MidwayUSA | $45.49checked Nov 13, 2026 | In stock | Buy at MidwayUSA | |
| Ammunition Depot | $52.99checked Nov 5, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $38.66Salechecked Oct 21, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $39.99checked Nov 2, 2026 | Check store | Buy at Palmetto State Armory | |
| Natchez | $39.99Salechecked Nov 13, 2026 | Check store | Buy at Natchez | |
| GrabAGun | $40.29Salechecked Nov 13, 2026 | Check store | Buy at GrabAGun | |
| Classic Firearms | $41.97checked Nov 13, 2026 | Check store | Buy at Classic Firearms | |
| Bereli | $45.00checked Nov 13, 2026 | Check store | Buy at Bereli | |
| Kentucky Gun Co | $34.99checked Nov 13, 2026 | Out of stock | Buy at Kentucky Gun Co | |
| Brownells 17.76% off · ends Nov 15 · exclusions apply | $41.99checked Nov 13, 2026 | Out of stock | Buy at Brownells | |
| OpticsPlanet | $46.49Salechecked Nov 13, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $39.99 at GunMag Warehouse. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | — | $52.99 | $52.99 |
| Battlehawk Armory | — | $38.66 | $46.99 |
| Bereli | $45.00 | $45.00 | $45.00 |
| Brownells | $41.99 | $41.99 | $41.99 |
| Classic Firearms | $41.97 | $41.97 | $41.97 |
| GrabAGun | $40.29 | $40.29 | $40.29 |
| GunMag Warehouse | — | $39.99 | $39.99 |
| Kentucky Gun Co | $34.99 | $34.99 | $40.86 |
| MidwayUSA | $45.49 | $45.49 | $45.49 |
| Natchez | $39.99 | $39.99 | $39.99 |
| OpticsPlanet | $46.49 | $46.49 | $46.49 |
| Palmetto State Armory | — | $39.99 | $44.09 |
Since Sep 28, 2026.
About this part
The First Defense Tactical Subsonic 300 BLK 200gr FMJ 50/Box is a 300 Blackout ammunition from Magtech Ammunition. It's sold by 12 stores (3 in stock), from $34.99 to $52.99. The lowest in-stock price in the last 30 days was $39.99 at GunMag Warehouse.
From the manufacturer
MAGTECH FIRST DEFENSE TACTICAL 300 BLACKOUT SUBSONIC FMJ RIFLE AMMO Thanks to Magtech, one of the industry's leading providers of budget-priced training ammo, 300 BLK shooters can now train with their rifles more, thanks to the introduction of Magtech First Defense Tactical 300 BLK ammo. This First Defense Tactical 300 BLK ammo is loaded with flat FMJ bullets, which are heavy-for-caliber options that offer subsonic performance that's perfect for use with suppressor-equipped rifles. Each round is loaded with a 200-grain bullet that features a muzzle velocity of 1,017 fps. The Magtech rounds can be had in quantities of 50 or 500. Mfg: Magtech Ammunition
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