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Rock Island M5 Pump Action Shotgun 12 Gauge 3" Chamber, 20" Barrel 5 Rounds Polymer Stock Parkerized 51329

Typically ships within 1 to 2 business days when a valid FFL is received
  • All firearm sales are final. NO RETURNS.
  • Return to manufacturer for warranty service.
  • Actual buyer must pickup from FFL dealer who will conduct the background check. Learn more
  • Firearm transfer must be the actual transferee/buyer. Click here to see BATFE form "Transaction Record Part 1".
  • Firearms are only available for purchase online.
Shipping is only $10.00 on firearm orders! No additional shipping cost for more guns on this order.
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  • Purchasing a Firearm Online
The RIA M5 is the ultimate value in a combat shotgun. With extra features like a jeweled bolt and heat shield as standard offerings this pump action is an unbeatable bang for your buck.

Specifications and Features

M5 shotgun
Parkerized finish
Black synthetic stock
Bead sight
20" Barrel
40" Overall
7 lbs
12 Gauge 3" chamber
5+1 of 2 " and 4+1 of 3"
Cylinder bore fixed choke
Twin Slide Action Bars
Heat Shield
Jeweled Bolt

Firearms are non-returnable and will only ship to FFL Dealers.

Click here to learn more about the Armscor M5 pump-action shotgun.

Buying a Firearm Online is Easy!
  • Add your selected firearm(s) to your shopping cart and check out.
  • Select a local Federal Firearms Licensed (FFL) Dealer that will accept the firearm and complete the transfer. Find a FFL Dealer HERE.
  • If you choose an FFL Dealer that is not on our preferred list, you or your FFL Dealer will be required to fax or email us a signed copy of the Federal Firearms License referencing your Cheaper Than Dirt! order number.
  • Pick up your firearm from the FFL Dealer, who will need to do a background check. Transfer fees may apply.
Buying Firearms on the Internet

Federal law requires firearms to be shipped to FFL Dealers. For an individual to receive a firearm from Cheaper Than Dirt! it must be shipped to an FFL Dealer in your state.

Locating a Federal-Firearm License Dealer (FFL) in Your Area

There are thousands of FFL Dealers in the United States. You may choose an FFL Dealer from our preferred listing or you may find a dealer in your area. To find a list of FFL Dealers in your area area CLICK HERE. If you choose a dealer that is not on our preferred list, either you or the FFL Dealer will be required to submit a copy of the Federal Firearms License referencing your Cheaper Than Dirt! order number. The FFL Dealer will usually charge a fee to conduct the transfer. There are duties that the FFL Dealer is required to do during the process which include a background check. Remember, the FFL Dealer is doing you a favor and the process takes time to complete. Fees can vary so check with the FFL Dealer ahead of time to request a quote on the fees associated with your firearm transfer. The FFL Dealer is in business to make a profit and your internet purchase may be viewed as competition to their retail business. If you feel the fees are too high, you can search for another FFL Dealer.

Completing the Transaction

Once you place the firearm in your cart and checkout you will receive a confirmation email that has your order number and further instructions. We will verify the FFL license and also make the FFL Dealer aware that an order from Cheaper Than Dirt! will soon be arriving for you. Most orders are processed within 2-3 business days from the time we receive and verify the FFL Dealers information. Once shipped, your firearm will arrive at the FFL Dealer within 3-7 days business days. The FFL Dealer will begin processing the shipment. It may be an additional day or so before the FFL Dealer is ready to conduct the transfer of the firearm to you. Call the FFL Dealer and set an appointment to confirm that the firearm is ready to be transferred.

Please note! All Firearm Sales are Final

It is important to thoroughly inspect your firearm before completion of the transfer. Once the firearm is transferred into your name, Cheaper Than Dirt! will not accept a return or exchange under any circumstance. If a defect is discovered after completing the transfer, you must contact the manufacturer directly for repair or replacement.

Total number of Reviews: 23

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4.0 5
"Received the M5 from CTD in four days...great service! The shotgun was clean and well made as has been my experience with RIA 1911's. The first range experience took about 25 rounds (low brass...cheap.... bird shot) down the pipe to loosen up the action. The first few rounds required really slamming the slide forward to seat the round so that the trigger would release and the weapon fire. After about 40 rounds it was smoothly eating everything from high brass 2 3/4\" to 3\" and firing normally. Even fed it some 50 year old magnum 00's paper case shells and it really hammers. This gun can handle the heavy loads it was made for...no worries.Overall, a good home defense weapon for the price.....just expect it to have a brief break in period and enjoy getting to know your M5."
5.0 5
"Order this item on Sunday. My FFL dealer received on Wed - 3 days later~!! Great service. Couldn't believe how well the packaging was - box in a box. The M5 was absolutelygreat - still packed in platic and styrofoam from the manufacturer. Will have to give gun a good cleaning before using but it looks great and I'm sure it's going to be a great \"shooter\". Thanks CTD~~!!"
3.0 5
"I made the mistake of ordering this shotgun the Monday before the 4th of July weekend, which meant that it arrived at my local FFL the following Monday. Dispute the extended travel time, when I picked it up, the preservation oil coated the gun pretty thoroughly. Field stripped it to clean and found some wear on the internal parts already. (Mostly just paint missing on areas of metal to metal contact.) It cleaned up nicely and I will be taking it to the range next week and see how she shoots."
5.0 5
"Great shotgun, great price. 3day shipping even over 4th of july weekend! Heavy, solid, tough shotgun. Perfect for a self defense weapon. Functions flawlessly, smooth too. Little heavy for girlfriend to shoulder, but shes getting used to it more and more. She'll shoot it til shes bruised. Great gun, even better price."
4.0 5
"After taking this shotgun to the range, I'm updating my review from 3 to 4 bullets. It did take some time breaking it in, but I shot everything from bird shot to slugs and it did a really good job. Now my only real complaint is the buttstock shell storage slot is nothing to brag about. Can't get the 2nd round in there or the spring to come back flush when I removed them."
4.0 5
"The shotgun is very nice. smooth action, decent quality,and shoots nice.It was shipped very fast(4 days).the only bad thing was there was something white on the stock,like oil.It is kind of bad looking.But a good inexpensive shotgun."
4.0 5
"I received this shotgun very quickly! Very quick shipping and flawless delivery!I took this M5 shotgun straight to the trap range shooting Winchester target/bird shot. The shotgun was surprisingly very accurate and had zero issues putting 90 rds through it straight away. I bought a $2.99 shell holder which fits on the stock, but everything works perfect!"
4.0 5
"I ordered this on the Oct 15th and less than 24hrs later I picked it up. Good little shotgun for home defense or small game hunting. CTD is by far the best place to buy, great prices and service."
4.0 5
"For the price i couldn't pass this up, but once it arrived i was very pleased. This gun is well made in all the right areas, and has one of the smoothest actions I've ever felt. The only down side is the stock which is cheap but with some work you can get a Mossy 500 stock to fit but regardless amazing bang for the buck."
4.0 5
"Placed order on Monday and received item on Wednesday. Great gun at a great price. Well pleased with the whole transaction. Will recommend this gun and buying from CTD."
4.0 5
"How can you beat the price? Goes bang when you pull the trigger. Not a 5 star because the bead sight is a little funky."
5.0 5
"I am big fan of RIA's 1911's and buy them to customize as they are a great starting point. I figured for the price an RIA shotgun couldn't be all that bad. A bone-stock gun yes, but is great at the range and I now have it at the ready for home protection. I would get one or two before word gets out and they are gone!"
5.0 5
"If you are looking for a home protection tactical shotgun, look no further. The pump action of this M5 is as smooth as butter. Don't let the price scare you off, the value in this firearm far exceeds it's price."
4.0 5
"Gun arrived in 4 business days to my dealer. The price is great for the purpose (home defense). The action is super smooth. Only negative is the stock is low end but overall I am very satisfied"
5.0 5
"For the price and reliability these cannot be beat. The guns come wrapped and doused with preservation oil. As much as I wanted to clean them up and shoot them, I instead decided to pack them away for a SHTF scenario. Being preserved, there are ready for long-term storage. Given the price and mindful of the adage two is one and one is none...I bought more than one.Living out of state, I did not have to pax tax and shipping on guns is also free at CTD. My local FFL charges per form, not per gun so I saved a bunch there too!"
5.0 5
"Arrived at my FFL dealer in the usual, reliable, CTD 4 biz days. Yes, It has been DIPPED in preservative, then bagged. Spent last night taking it apart, cleaning, and re assembled. Took it to the range today. Shot 20 rounds; 5 slugs, and the rest buckshot, 2 3/4\". It cycled great, love the trigger, action seems sturdy. Bead sight is fair, and accurate, for a shotgun. I suggest removing the unnecessary heat shield. Its clamp sucks, so the recoil made it move forward and smack the mag tube clamp, knocking it loose. Both clamps were 1 inch forward of where they should be, in 20 rounds. I give it a 5 because its an unbeatable deal on a decent 12ga pump. Thanks again CTD!"
5.0 5
"Fast Delivery Great Gun for the Price!!"
5.0 5
"I bought this on Sunday and it arrived at my FFL Tuesday morning. Great shotgun can't beat the price it works well. Purchased it for home defense. Took apart and cleaned out packing grease. Had a hard time putting it back together the first time but it works great."
5.0 5
"Ordered, received in 3 days, excellent service and wonderful shotgun for home defense and hunting."
5.0 5
"Received Gun in two days. Disassembled it completely and cleaned all the anti-rust stuff off. Cut 3\" off barrel and installed a muzzle break. Machined a 7 shell mag tube with a mag tube cap that looks like muzzle break. Machined a adapter to install a ATI 6 pos side folding stock. Action super smooth. Now off to cerakote. This shotgun is \"Bad to the bone\". Cannot beat the price!"
4.0 5
"After several trips to the range that were flawless I gotta say I love it. It's black and evil and didn't set me back too much to buy it. The 2 shell holder seems to need some work as it's difficult to put two in and then get them out. Maybe this will change when the spring wears and some material wear from putting shells in and out. found after putting it in the safe dirty saw some surface rust but wd-40 fixed it. Next time i'll clean it before putting it away. CTD is great as always with delivery."
2.0 5
"First off the pad on the butt stock is as hard as a brick. The first time I shot a rifled slug the heat shield tried to fly off the gun and the front sight stopped it and was damaged, the second shot the heat shield did fly off the gun. Very cheaply made and jams a lot."
4.0 5
"This gun cycles as comfortably as your favorite pair of work boots. Super smooth easy action, and the gun is heavy well built and was leaps and bounds over the previous Stevens tactical I owned. But it is heavy... I modified an ATI folding pistol grip stock, and the weight does make maneuvering in tactical form a little more cumbersome. But the trade off of it being super smooth is worth it."