The Chiappa® 1911-22 Custom offers dependable target practise performance. 10-Round 22LR Magazine. This lightweight magazine provides unrivalled durability and corrosion resistance thanks to its impact-resistant, glass-filled polymer construction. A steel spring and a polymer follower ensure smooth feeding operation. Even better, this. Witness holes that were pre-drilled in the 22LR 1911 magazine allow for rapid visible round counts. ONLY suitable for use with the Chiappa® 1911-22 Custom.