What is a "Lanced Magazine"?

[Mikey]

C Prod. offers 20 rd straight mags that are "lanced" to 5 or 10 rounds, they also have ones that are "blocked", I know what blocked mags are but what the hell is "lanced" mag?

http://www.cproductsllc.com/shop/product_info.php?cPath=22_28&products_id=46

 

[FPrice]

Probably one means permanent while the other is able to be removed/reversed to normal capapcity.

That's my SWAG.

 

[Mikey]

That is what I was thinking...

 

[BillO]

I believe a lanced mag will be rendered unusable if a mod is attempted to increase capacity.

 

[bpm990d]

Don't have a camera today but will post when I get a chance. It's just two small tabs about .75cm that are pressed into the body of the magazine. One on the front of the magazine and one on the back.

B

EDIT: Photos

 

[01SVTvert]

Lanced refers to a blockage across the body of the magazine. Blocked refers to a part that has been added to below the follower so it cannot descend usually.

Different ways of accomplishing the same thing

think of one as a horizontal bar and the other as a vertical bar. One blocks on with its' end, the other with its' length.

 

[appraiser]

without seeing it, I am assuming it is a normal 48 state magazine, with a perforation in the sheet metal that indents into the magazine body just below where the follower would be when 10 rounds are loaded into the magazine.

Are MA legal since it would take next to nothing to convert them into full capacity.