• Welcome to AR-308



    Discussions on Industry news and building AR-308, LR-308, AR-10. Where to find the best prices for a simple build or the top quality parts for a high-end AR rifle.

    A step by step build of a SI-Defense AR-308

    If you just want a high quality AR Rifle but do not have the time to build one, SI-Defense can build you a custom rifle using top quality parts to ensure you get one of the best quality AR rifles in the world.

    This website is dedicated to bringing you the Latest News about our 2nd amendment attacks and building an AR-308 / 7.62mm rifle. Here we will share our building process and the places that supplied the parts for our build.

AR-308 BILLET MATCHED SETS, UPPER and LOWER RECEIVERS

SI-Defense

AR-308 BILLET MATCHED SETS, UPPER and LOWER RECEIVERS

 

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SI-D .308/7.62 UPPER RECEIVER

FEATURES:
CNC MACHINED FROM BILLET

7075-T6 ALUMINUM
ADDED WALL THICKNESS

BLACK ANODIZED
ENGRAVED “T” NUMBERS

FORWARD ASSIST SET SCREW
FEED RAMPS

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MATCHES SI DEFENSE LOWER RECEIVER PERFECTLY
and IS COMPATIBLE WITH MOST LOWERS ON MARKET

SI-D .308/7.62

LOWER RECEIVER

FEATURES:
CNC MACHINED FROM BILLET

7075-T6 ALUMINUM
BLACK ANODIZED

 

photo (2)

ENGRAVED MARKINGS
CUSTOM TRIGGER GUARD

MACHINED GRIP FEATURES
BOLT CATCH SCREW

MATCHES SI DEFENSE UPPER RECEIVER PERFECTLY
and IS COMPATIBLE WITH MOST UPPER ON MARKET

 

 

 

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