The aluminum version of the 7mm caliber are made exactly the same as the copper version. Commercial quality gas checks made from aluminum for the lower cost and reduced barrel fouling. Much lighter than copper in weight, the aluminum gas checks are less costly to ship. The gas checks are sold in resealable clear plastic bags. Shipping is based on each item's weight. USPS flat rates are calculated in the shopping cart. 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 $4.99, 250 for $7.75, 500 for $11.50 and 1000 for $19.00.
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All prices are in USD.