The Magpul 223/5,56 Polymer Dummy Round is a very good tool for fabricating malfunctions and training in the clearance of malfunctions and/or action testing on any 223/5,56 rifle platform.

They are not snap-caps and I would not feed them into a very hot chamber unless you intend to simulate a serious malfunction.

They also make cool key chains.

We have them in stock for R100 VAT included for a 5-pack.