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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
Lower Receiver Parts
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Lower Parts Type
MARS™ Specific Parts (0)
Filter
5.56 Front Pivot Pin
$
6.50
Add to cart
5.56 Rear Takedown Pin
$
6.50
Add to cart
Pivot & Takedown Detent
$
3.50
Add to cart
Pivot & Takedown Spring
$
3.50
Add to cart
.308 Front Pivot Pin
$
14.00
Add to cart
.308 Rear Takedown Pin
$
14.00
Add to cart
Buffer Retainer
$
3.50
Add to cart
Buffer Retainer Spring
$
3.50
Add to cart
QD Endplate
$
39.00
Read more
Endplate
$
3.50
Add to cart
L7A2E
$
14.00
Add to cart
5.56 Extension Tube
$
49.00
Read more
.308 Extension Tube
$
59.00
Read more
5.56 Action Spring
$
6.00
Add to cart
.308 Action Spring
$
10.00
Add to cart
Carbine Buffer
$
15.00
Read more
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Lower receiver parts go through a rigorous quality control and inspection process to ensure combat standards are maintained.
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