Metro Gun Systems manufactures a single, specialized product: replacement barrel extensions that reduce recoil and noise in shotguns without using conventional suppressors or silencers. Founded by L.P. Brezny and developed through extensive ballistic testing, the Metro Gun System™ uses a gas-venting...
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Full description and what we offer
Metro Gun Systems manufactures a single, specialized product: replacement barrel extensions that reduce recoil and noise in shotguns without using conventional suppressors or silencers. Founded by L.P. Brezny and developed through extensive ballistic testing, the Metro Gun System™ uses a gas-venting extension design that cuts the report down to 72dB—roughly the sound level of two people talking at 150 feet.
The system is simple to install. Remove your shotgun's factory choke tube, thread the Metro Gun extension onto the barrel, and add your choke tube to the muzzle of the extension. That's it. No permanent modifications. No special ammunition required (though the system works best with low-velocity loads).
One-piece steel construction with proper bore alignment ensures accuracy and reliability. The steel comes from one of only two suppliers worldwide that produce the specialized material required for the system.
| Brand | Compatibility |
|---|---|
| Winchester | Standard fit |
| Browning | Invector Plus extensions |
| Remington | Rem choke extensions |
| Benelli | Standard fit |
| Mossberg | Standard fit |
| Ruger | Standard fit |
| Beretta | Standard fit |
| 20 Gauge | Adapter available |
Metro Gun Systems™ puts ammunition to work in real hunting conditions. Federal Cartridge developed the first factory loads specifically for the Metro Gun System, engineered to stay in the 850-900 fps velocity range for optimal quiet operation.
Field testing includes:
Legal Status: The Metro Gun System™ is not classified as a silencer by the Bureau of Alcohol, Tobacco and Firearms. The USDA and multiple government agencies use it for nuisance pest control.
Metro Gun Systems supports three ammunition choices:
1. Federal Cartridge Metro Gun™ Factory Loads - 2¾" and 3" loads with payloads of 7½ shot or Tungsten/Iron. Engineered specifically for the Metro Gun extension.
2. Remington STS - Available through your local gun dealer as a Metro Gun load choice.
3. Hand-Loaded Ammunition - Experienced reloaders can load sub-sonic ammunition for even lower cost per shot. Detailed handloading information available.
The system handles all SAMMI-standard shotshell ammunition, including slugs (use IC choke or rifled choke tubes for slug accuracy).
All Metro Gun barrels are now custom orders. A $100 deposit is required before construction begins. Delivery typically takes 2-3 weeks.
Contact for current pricing: - Phone: (605) 787-6321 or (605) 431-0474 - Email: [email protected] - Hours: 8:00 AM - 8:00 PM Mountain Time - Mail: Metro Gun Systems, P.O. Box 529, Piedmont, SD 57769
Metro Gun Systems also stocks remaining inventory from Hastings' closure in 2010. The Hastings Paradox rifled barrel features six lands and grooves with 1-in-34" twist (12ga) for increased slug stability and accuracy. These are among the most accurate shotgun replacement barrels ever tested.
Warning: Pre-1999 Remington Copper Solid Sabot ammunition (index PR 12 MAG RS and PR 12 RS) is not recommended for Hastings barrels due to reported barrel damage. Post-1999 versions (index PR 12 MCS and PR 12 CS) are safe to use.
L.P. Brezny authored Gun Digest Book of Long-Range Shooting, 2nd Edition, covering modern advances in guns and gear for hunting, informal target shooting, and formal competition.
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