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Firearms
MARS™ Rifles
Defender Rifles
Standard Patrol Models
Grenade Launchers
Parts + Gear
Uppers
Upper Parts
Barrels
Lower Receivers
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
Bolts & Bolt Carrier Groups
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Bolt or BCG
Bolt Carrier Group (13)
Bolt Only (4)
Carrier Only (8)
Operating Method
Direct Impingement (19)
Piston (10)
Filter
.308 Bolt
$
229.00
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Semi-Auto 5.56 Bolt Carrier
$
139.00
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Full-Auto 5.56 Bolt Carrier
$
139.00
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Semi-Auto Enhanced 5.56 Bolt Carrier
$
179.00
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Full-Auto Enhanced 5.56 Bolt Carrier
$
199.00
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Semi-Auto Piston 5.56 Bolt Carrier
$
259.00
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Full-Auto Piston 5.56 Bolt Carrier
$
259.00
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Semi-Auto .308 Bolt Carrier
$
229.00
Read more
Full-Auto .308 Bolt Carrier
$
229.00
Read more
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Proudly made in Iowa. LMT bolt and bolt carrier groups are machined with an emphasis on tolerance and fitment to ensure maximum weapon reliability. A variety of calibers are available for both Direct Impingement and Piston models.
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