Cal "multi"

[KMAX]

What does this mean when the lower on an AR15 is stamped with this?
(will it chamber .223 and 5.56?)

 

[BattleRife]

The markings on the receiver mean nothing. The word "multi" was used by some manufacturers so that a barrel chambered in 9mm, or .45, or 6.8, or whatever could be installed and the markings wouldn't be inaccurate

 

[DaveMachine]

It doesn't really mean anything. You're better off looking at the stamp on the barrel or asking the manufacturer/retailer.

Also, some others may disagree but it's generally accepted that a 5.56 chamber with fire both 5.56x45 and .223 Remington ammunition. A .223 Remington chamber on the other hand is not generally considered safe to fire 5.56x45 ammunition from.

That's the way I understand it anyways.

 

[KMAX]

Tks!

 

[Rebel Rouser]

It's because the US State Dept. won't let you export anything that is stamped 5.56.

 

[KMAX]

It's because the US State Dept. won't let you export anything that is stamped 5.56.

Thats exactly what it is. Talked to the manufacture this morning. Its a DOS export law. US military says 5.56 so no one else's can.

Good to go with .223 or 5.56 through that rifle.

 

[DaveMachine]

 

[Ix]

aeroprecision lowers are marked "multi"

 

[JDube]

My RRA is stamped 5.56 and I'm pretty sure it was imported somewhere in 2010... ?

 

[KMAX]

Depends on the export officer that approves the shipment from what I was told.
There was a full shipment of AR's that just arrived on the east coast stamped 5.56...no rime or reason in this buisness...

 

[Ix]

Considering mine says multi I might just switch barrel (or upper anyway) and make it a 300blk. My registration says nothing about barrel length or caliber anyway

 

[DILLIGAF]

My Spike is MUlti