These are crimp on 6 mm / .243 aluminum gas checks.
The checks are sold in resealable clear plastic bags. USPS flat rate boxes and First Class mail are used to reduce shipping cost. Most orders ship in one business day Monday through Friday.
Sold in 4 quantities: 100 for $3.95, 250 for $5.00, 500 for $9.00 and 1000 for $16.00.
Posted by Larry on Mar 23rd 2018
It works on both my 6mmx45 and my .223 Rem. when seated as a plain base G C.. Thanks Sage's Outdoors.
All prices are in USD.