The loading blocks are designed to fit the Desert Tech rifles. Due to the different frame sizes - the ABR could be underneath the magazine on the smaller models (making it a single feed). A loading block instead of a magazine is recommended as it provides additional spacing for the adjustment hand. As you can see in the additional pics the magazine interferes with easy access to the thumb wheel.

• SRS

• HTI - for .50 cal - base brass. (Only) not .375

Please note that this product will only fit Rifles it is listed for.

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