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Carrying extra shotgun ammo isn’t easy. It’s big, bulky, and tossing on a plate carrier or chest rig during a home defense situation is unlikely. The side saddle is the most common method of carrying spare rounds on the gun and is often the fastest means to reload. Recently I stumbled across the Flash 5 stock by a company called TactaLoad. The folks at TactaLoad sent me one for my Mossberg 590A1, and I’ve been putting it through its paces.

The Flash 5 was designed by a retired Secret Service agent who extensively used the Speed Feed stock on government guns. The Flash 5 is available for the Remington 870 and Mossberg 500/590 series shotguns.

TactaLoad Flash 5 stock (courtesy Amazon)

Inside the stock is an integral magazine that holds five rounds of spare ammunition. The integral magazine feeds the ammunition through the bottom of the stock and can accommodate 12 gauge shells from 2.75 to 3.5 inches in length.

Flash 5 Installation

Installation is rather simple, but as you’d imagine, there are a few extra steps. You need to remove the Flash 5’s integral magazine and a rear plate. Then you install the stock via bolt like you would any other stock.

TactaLoad includes a nice long Allen wrench that makes installation super smooth and easy. Once the stock is installed, you can then install the magazine follower and spring and rear plate with a separate screw. The magazine guts have a spacer that needs to be removed to accommodate 3.5-inch shells if you plan to use them. With the spacer installed, the magazine will accommodate only 2.75 and 3-inch shells.

Five rounds of 12 gauge ammo are on hand and in the stock (Travis Pike for TTAG)

When that’s done, you can install the butt plate. There are a few options with the Flash 5. There’s the shorter tactical butt plate that gives you a 12.5-inch length of pull. The stock recoil pad gives you a little more cushion against recoil and delivers a 13.5-inch length of pull.

Additionally, TactaLoad sells half-inch spacers to increase the length of pull as you see fit. The spacers will work with either the Tactical butt plate or the standard recoil pad. You can utilize two spacers at a time to add up to an inch length of pull where needed.

The Flash 5 In Action

The Flash 5 is loaded with the rim of the shells facing toward the shooter. The shells are held in place with both friction and a spring-loaded gate. The gate moves without much resistance and can be pressed downward when drawing out a shell. The magazine positions the shells for easy access for either hand and makes drawing shells out both easy and intuitive.

The spring loaded catch opens with ease and naturally gets out of the way when drawing shells (Travis Pike for TTAG)

Gripping the rim of the shell and pulling it from the stock is very natural, and when done properly, all you have to do is rotate your wrist to slide the shell into the magazine tube. It’s quick and easy, and you don’t even have to break your firing grip or sight picture to load the shotgun’s tube magazine.

sight picture remains perfect when accessing and loading ammo (Travis Pike for TTAG)

Loading one round at a time seems to be the most intuitive way to reload. I tried removing more than one and ultimately it felt a little clumsy to try and load two at once.

Give it a tug and the round is free and ready to load (Travis Pike for TTAG)

The loading gate and friction do an excellent job of keeping the shells in place. I attempted several sprints with various capacities loaded into the magazine. My main concern was when the Flash 5 was loaded with a single round.

When only one round is loaded into the stock, it tends to move around a good bit. Try as I might, I couldn’t get the round to twist and become inaccessible or to jam the Flash 5.

Rotate your wrist slightly and shove the shell in (Travis Pike for TTAG)

I’ve reloaded from the Flash 5 hundreds of times now. I’ve alternated between magazine tubes and port reloads and worked the Flash 5 over and over and over. The internal magazine never failed or jammed in any way.

Here’s TactaLoad’s demonstration video:

Flash 5 vs. Side Saddle

I mentioned side saddles in the beginning, and while they are the current standard, I see a number of advantages offered by the Flash 5. First, as stated above, this system is completely ambidextrous. Side saddles are rarely lefty-friendly.

Lefties get love with the Flash 5

Second, the Flash 5 keeps the gun nice and streamlined. It fits more easily in racks, especially if the gun is literally riding shotgun in a police cruiser. It also allows you to use safes like the Hornady Rapid Safe wall mount model.

Side saddles can get tangled up in gear when worn, and also when things stick off the side of your gun, they tend to get caught on something somewhere.

Streamlined design also protects ammo from the elements (Travis Pike for TTAG)

The Flash 5 is also at least as fast, if not faster than a side saddle for reloading the tube magazine. I have tons more practice and thousands more reps with a side-saddle than the Flash 5. However, I could load five rounds from the Flash 5 in the same time it takes to load four from a side-saddle.

At best, I tied with the side saddle, and often the Flash 5 proved to be faster. There is just something more intuitive about removing the rounds from a horizontal feed to install them into a horizontal tube magazine.

Port reloads tend to be slower than a side saddle, but only by a hair. (Travis Pike for TTAG)

The only time the side saddle wins more often than the Flash 5 is in emergency port reloads. I was often able to pull off a slightly faster port reload with the side saddle, but the difference is measured in thirds of a second.

Ammunition in a side saddle is also exposed to the elements. Rain, moisture, dirt, dust, and more can cling to your ammo when it’s hanging on the side of your receiver. With the Flash 5, the ammunition is housed and protected in the stock, away from the elements.

The Flash 5 places the ammunition and its extra weight at the rear of the gun. Big side saddles can make the gun feel off-balanced. Also, when you reach for a spare round using the Flash 5, it’s always in the same place. With a side-saddle, you have to get used to moving back and forth along the saddle as you pull rounds.

Reaching ammo is consistently the same motion. (Travis Pike for TTAG)

Lastly, side saddles that connect with bolts that run through the receiver can be a tricky proposition. You have to tighten them just right. Too tight, and the gun binds up, especially a semi-auto. Too loose, and it flops around. The Flash 5 doesn’t interact with the shotgun’s action, so it can’t interfere with it.

The Flash 5 As a Stock

Besides being a spare ammo carrier, the Flash 5 is still a stock for your shotgun and needs to perform as one. The adjustable length of pull is great and makes it easy to fit the stock to your body size. I like my shotgun stocks short, and as a bonus, it fits in a AR 15 case. The Flash 5 provides a comfortable cheek weld and a nicely textured pistol grip. The stock is made from a high impact, extremely durable polymer.

I know it’s durable because I tried to break it a bit. A shotgun is a close quarters weapon, so can a hollow cavity present a weakness in the gun? I utilized both horizontal and vertical butt strokes until the pain in my wrist convinced me to stop. I did it with the Flash 5 loaded and it didn’t cause any malfunctions or result in rounds dropping out.

Striking the old tire resulted in zero issues. (Travis Pike for TTAG)

Mounting the stock is natural and comfortable and it handles recoil well. Recoil doesn’t cause malfunctions in the stock either. I ran full-powered buckshot for the majority of my testing and never found the stock abrasive or painful. The textured grip makes a push-pull technique easy to use.

I really beat the hell out of it (Travis Pike for TTAG)

My only complaint is that the Flash 5 stock doesn’t have a rear sling swivel. That’s an oversight.

The Flash 5 performs well as both a shotgun stock and as a spare ammunition holder. The device surprised me and I think TactaLoad has a real winner here. It’s an excellent design that’s plenty durable and makes reloading fast while providing an ambidextrous design that protects your ammo and keeps it in place.

I spoke with the guys at TactaLoad, and while the stock is currently being produced for the 870 and 500 and Maverick 88 series, they’re experimenting with numerous other shotguns, including a semi-auto design in the near future. Check em out here.

Specifications: TactaLoad Flash 5 Shotgun Stock

Compatibility: Mossberg 500/590, Maverick 88 and Remington 870
Length Of Pull: Adjustable between 12.5 to 14.5 inches
Capacity: 5 rounds of 12 gauge ammunition, 2.75 to 3.5-inch shells
MSRP: $129.99

Ratings (Out of Five Stars)

Reliability: * * * * *
I couldn’t get the thing to mess up with 2.75 and 3-inch shells. It never hiccuped, jammed, or failed to feed a round when I needed it. Even after hundreds of reloads and a good beating, the Flash 5 kept on working.

Durability: * * * * *
After using the Flash 5 for roughly a month now, I’ve yet to break it (though I’ve tried). Even when I repeatedly beat it against a tire, I got hurt before it did. I’ve tried and tried to get it to fail and I can’t.

Ergonomics: * * * * *
The design is very well thought out. It makes reloading your shotgun easy and intuitive. The Flash 5 also acts as an excellent stock with an adjustable LOP, a great cheek weld, and a well-textured grip.

Overall: * * * * *
I thought the Flash 5 was cool when I first came across it, but I never thought it would actually be faster than a side saddle. However here I sit, impressed and humbled. It will remain on my 590A1 and I plan to keep running it. I’m going to keep my eyes out for the new designs and can’t wait to see what TactaLoad comes up with next. The Flash 5 is designed, built, and manufactured in the United States as well.

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  1. ithaca just isn’t catered to. choate stocks and… not much else.
    and if i ever mounted one of these on, i would then never be allowed to re- attach the ds pistol grip… (how do “they” know again?).

  2. Marginal utility. I just pull a 5, 10 or 20 round magazine from my tactical messenger bag and keep shooting my BAT Bullpup.

    • What’s else do you have in your tactical purse, do tell!

      Personally I’m not sold on box magazine shotguns, but should 20 gauge evolve some, that may change my mind a bit.

      • Rock Island Armory VR82: 20-gauge, detachable mag-fed shotgun.

        Winchester Defender 20-gauge: copper-plated #3 buckshot, 20 pellets, 2 3/4”, 1145 FPS. [announced at ‘ShotShow’ a week or so ago…]

  3. How well does this work with heavy gloves?

    To me, the Flash 5 appears to be catered more to the tactical or recreational crowd. Browsing their website, they had a ‘duck hunting’ photo. I have a sidesaddle on my waterfowl gun. I’m wondering how well the Flash 5 would function in the dirt/mud/rain/snow and is it usable while wearing heavy gloves. Any chance the loading gate or the area around it snags while wearing heavy clothing?

    Thanks for the review and it would be nice to get a follow-up on it sometime in the future.

  4. I like this kind of innovation, and am actually intrigued enough to look further into this accessory for my shottie. I’d use it as storage for additional shells, not to replace my sidesaddle, but to augment it. 6 in the tube, 6 more in the saddle, and 5 more in the stock. Ready to grab-n-go. Nice.

    I found Travis Pike’s photos above much more informative than the company’s video depicting Mitch The Magic Muscleman standing stiffly and giving a scripted presentation. Just my 2 cents.

      • Larry I think side saddles attach to the receiver, so I can’t possibly see why both methods of storage couldn’t be used simultaneously.

        It’s a cool idea that sounds like it also actually works! WINNER!

  5. My 590A1 has both a six shell Side Saddle and the old Speed Stock. Would be interesting to compare the Speed Stock to this new design.

  6. Golly half the price of my junk Turkish shotgun. Churchill 612. It has a horrible pad. I wanted another Maverick88 but my LGS had $400(!) on em. Shoulda got one at my favorite LGS on black Friday when they were $259. And I hate giving the caliphate my dough! Anyways mainly bought in case the Dims go full retard sooner than later😖

    • I think we all have a list of things we wish we had snagged back when… $50 Mausers, $200 Mossberg combos, Amazon when they only sold books…

        • $100 Moisins? My short 1952 w/folding bayonet was only $59. The bluing on it would rival some basic entry level hunting rifles.

        • A hundred?!? They were $69 at Cabelas Black Friday 2011. I had just bought my 1st 2 guns earlier that year. Had no clue about Mosin’s!

        • Uncommon,

          A while back, when my son turned 18, I took him to a local gun show and bought him his first rifle…a 1934 Mosin for $100. This was before Jerry Brown became Governor and stomped all over our rights.

          We completely restored that Mosie and turned it into a tack driver. 🙂

      • My Mossberg 500 was $99 new, a Blue Light Special at K-Mart.

        My Mossberg 590A1 was built out of about $200 in parts left over from other projects, including a $40 new receiver off GunBroker. The bayonet though, that was a full price buy new but it was worth it to get a genuine item.

        So, it’s easy. Just do your gun shopping at K-Mart about four decades back or so and then scour GunBroker for parts deals about ten years ago and it’s all good!

      • Jesus, guys, I had a steady income when I still could have ordered up a half-dozen brand new select fire ARs, for only an extra $200 each, other things I passed on pale in comparison.

  7. The magazine guts have a spacer that needs to be removed to accommodate 3.5-inch shells if you plan to use them. With the spacer installed, the magazine will accommodate only 2.75 and 3-inch shells.

    Now THAT sounds like someone was really thinking this through. Kudos to a smart design choice.

    (Hint: exceedingly few people actually run 3.5-inch shotgun shells and being able to accommodate that small number of people while also producing a solid design for everyone else is a significant accomplishment.)

  8. With the Flash 5, the ammunition is housed and protected in the stock, away from the elements.

    That is a compelling reason to choose this extra-storage solution over side saddles.

  9. Interesting item.

    Since I have an Ithaca and a model 12, I guess I’ll stick with my neoprene butt sleeve.

    Not much to break and its not terribly slow. Never liked shooting with a side saddle attached.

  10. Great review. I appreciate all the practical details. Very informative for a product I didn’t know existed. Thanks.

  11. This Shotgun Stock looks impressive! The sleek design and advanced features seem to redefine shotgun ergonomics. Can’t wait to try it out on the field and experience the enhanced performance firsthand. Kudos to the team for pushing the boundaries in firearm accessories!

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