Community

Hi Bayardo, Your 20" Security model has a 7-shot mag tube. The longer field barrels are designed to fit on models with the shorter 5-shot mag tubes. To install a 24" or 28" barrel on yours, you would first need to replace your mag tube with a 5-shot. It's not a difficult swap, but it will be a bit more expensive than just buying a new barrel. Honestly, considering the price of the barrel, tube, and replacement spring, the cost of the conversion might justify simply buying a new Mav88 Field model with your desired barrel length...

no the barrels are different here a setup for you to look at Remington 870 combo 18 inch cylinder bore barrel and a 26 inch choke tube barrel the add a 3 round extension (common for Remington) here are the links that you would want budsgunshop.com/catalog/product_info.php/products_id/33431/Remington+870+Express+12+26M%2F18CYL+Synthetic+ and budsgunshop.com/catalog/product_info.php/products_id/76115?utm_source=bing&utm_medium=cpc&utm_campaign=BudsProducts&utm_term=1101206460527&utm_content=Ad%2520group%2520%25231

If you feel an answer is helpful please click the green box stating it as the best answer. We are rated on our answers and are just volunteers. Thank you!