Ask Charles himself at charlesdaly.com
12gauge magazine cap fit on a 2ogauge 870 mag cap
first cock the pump down then unscrew the magazine cap then the barrel should slide out
just unscrew the endcap to the magazine tube and insert a small flat-tip screwdriver and push and turn, the spring and plastic plug can then be removed.
To remove the plug on a Remington 870 series all you need to do is unscrew the cap on the end of the magazine tube. Carefully because it holds in the magazine spring. the plug is the rod that is inserted in the spring so it cannot compress fully to limit capacity so just take it out and screw the cap back on (the cap compresses the spring) and voila. takes about twenty seconds.
No - something is amiss. If the magazine cap (front of the forearm) is tightly screwed on then the barrel should be tight.
remove magazine cap get a medium or large flat srewdriver push down on the plastic piece t1/4 turn clock wise and the spring and will come out refer to your owners manual if you dont have one go to a place that sells the gun and ask to see a manual.
Unscrew the magazine tube cap, pull the barrel off to the front, remove the forestock. If in doubt, consult the owner's manual. A replacement owners manual is available through Remington's web page.
I assume you want to remove the orange colored magazine follower? If so, you first need to unscrew the end-cap on the front end of the magazine tube. Looking into the front end of the magazine tube you will see a split bushing with a hole in the center of it. Carefully, very carefully, pry this end-cap out of the magazine tube. The reason you need to be careful is that this split end-cap is under pressure from the compressed magazine tube spring and once you remove the end-cap the spring will come out quickly. Once the spring is out you can then remove the orange end-cap. There may be a shotshell restricter (plug) inside the spring that restricts the magazine tube to only hold three rounds. This is a green plastic plug and can also be removed now.
Remove the magazine cap and forearm, then remove the barrel and mag tube. At the end of the tube will be a metal cap that you can carefully pry out with a screwdriver, some press in and turn to remove them. Use caution, it is under spring pressure.
On the end of the magazine tube there is a threaded-on cap. Remove this cap. You will now find a "spring plug" inside the front end of the magazine tube. Carefully pry this spring plug out of the magazine tube. Put a pair of safety glasses in the proper location on your face because once you get this spring cap close to the end of the magazine tube the magazine follwer spring will push it out of the mag. tube faster than you can say"Oh sh.. crap". Once this spring cap is out you can pull the magazine spring out if it already hasn't landed in the living room. You can now insert or remove a cartridge number restricting plug. Next you'll need to push the extended magazine spring back into the magazine tube and re-install the spring end cap. To get the spring plug in flush with the front edge of the magazine tube, tap it into place with a plastic screwdriver handle to prevent distorting the thin walls of the mag. tube. Replace the screw-on end cap and that's it.
Not sure what a "22 cap" pump is. The magazine capacity of a Remington pump rifle will depend on which MODEL, and whether you are loading 22 LR, 22 Long, or 22 Short. The Model 121A holds 20 Shorts, 15 longs, or 14 Long Rifle cartridges. A model 12 would hold 15, 12, or 10.