Noveske Lo-Pro Gas Block 300 AAC Blackout Barrel 12.5in Leonidas Pistol Length Stainless .750 Gas Block
No ratings yetFits and works with
- Caliber
- 300 Blackout · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Pistol · Handguards
- Gas block
- 0.75" diameter · Gas blocks
- Muzzle thread
- 5/8x24 · Muzzle devices
- Barrel length
- 12.5" · Handguards
Specifications
- Manufacturer
- Noveske
- Color
- Silver / Stainless
- Platform
- AR-15
- Caliber
- 300 Blackout
- Gas system
- Pistol
- Barrel length
- 12.5"
- Twist rate
- 1:7
- Thread pattern
- 5/8 x 24
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $380.00checked Nov 13, 2026 | In stock | Buy at MidwayUSA | |
| AR15Discounts 5% off | $380.00checked Nov 13, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $380.00checked Nov 13, 2026 | Check store | Buy at Dirty Bird | |
| OpticsPlanet | $403.75checked 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: $380.00 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 17, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $380.00 | $380.00 | $380.00 |
| Dirty Bird | $380.00 | $380.00 | $380.00 |
| MidwayUSA | $380.00 | $380.00 | $380.00 |
| OpticsPlanet | $403.75 | $403.75 | $403.75 |
Since Oct 17, 2026.
About this part
The Noveske Lo-Pro Gas Block 300 AAC Blackout Barrel 12.5in Leonidas Pistol Length Stainless .750 Gas Block is a 12.5" 300 Blackout barrel from Noveske with a pistol gas system. It's sold by 4 stores (1 in stock), from $380.00 to $403.75. The lowest in-stock price in the last 30 days was $380.00 at MidwayUSA.
From the manufacturer
Noveske Lo-Pro Gas Block 300 AAC Blackout Barrel 12.5in Leonidas Pistol Length Stainless .750 Gas Block 0. This barrel is tuned to lock back on the last round using subsonic 220 and 208 grain ammunition with a sound suppressor. The firearm may not lock back with subsonic 220 and 208 grain ammunition without a sound suppressor. Also the subsonic 300 BLK ammunition is more susceptible to a malfunction due to carbon fouling and adverse conditions than supersonic ammunition. The barrel is tuned to operate correctly with the back pressure provided by the AAC 762-SDN-6 using an H2 buffer or a Surefire 762K suppressor and an H buffer. In the development of this barrel we found evidence that the suppressor may require a symmetrical baffle stack as found in the AAC Cyclone K 762-SDN6 and Surefire 762K suppressor. Suppressors which cause off axis turbulence such as those with K type baffles may cause baffle strikes and/or point of impact shift and may damage your suppressor. Noveske Rifleworks LLC will not be responsible for damage or injury under ANY circumstances. Consult you suppressor manufacturer to determine if your suppressor is suitable for this application. Specifications for Noveske Lo-Pro Gas Block 300 AAC Blackout Barrel: Manufacturer: Noveske Color: Silver Fabric/Material: Stainless Steel Caliber: .300 AAC Blackout Gas System Length: Pistol Length Barrel Twist Rate: 1-7 Additional Features: Medium Contour .750 Gas Block Condition: New Firearms Threads Per Inch: 5/8x24 Package Contents: Noveske Lo-Pro Gas Block 300 AAC Blackout Barrel The Noveske .300 AAC Blackout 10.5 Inch Stainless Steel Barrel With Pinned Gas Block And Gas Tube - All NFA Rules Apply is a quality addition to the Noveske lineup. For more great deals on AR15 Barrels by Noveske please browse our Noveske Gun Parts page. Noveske 07000038: Lo-Pro Gas Block 300 AAC Blackout Barrel 12.5in Leonidas Pistol Length Stainless .750 Gas Block
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