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Firearms
MARS™ Rifles
Defender Rifles
Standard Patrol Models
Grenade Launchers
Parts + Gear
Uppers
Upper Parts
Barrels
Lower Recievers
Lower Receiver Parts
Triggers & Selectors
Buttstocks
Bolts & Bolt Carrier Groups
Bolt & Carrier Parts
Sights
Charging Handles
Accessories
Grenade Launcher Accessories
Gear
Magazines
Sales
Merch
News
Dealers
14.5 in / 368 mm
MARS-L 5.56 Piston
$
2,659.00
Find a Dealer
SPM14
$
1,849.00
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14.5″ 5.56 Barreled-Upper Receiver
$
689.00
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