Wyatt's DetMag (M4) Flush Mount Detachable Magazine Assembly - Remington 700™ BDL Short and Long Action

These outstanding drop-clip units drop in to standard Remington 700 BDL-type stocks as well as Manners and Bell & Carlson stocks (short and long action versions) so should come in very handy. Great for drop-in ADL to BDL conversions, hunting, varmint and tactical builds. Machined from solid billet aluminum, 5 and 10 round mags available.
SKU: 350100
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As low as: $57.31

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Very nice quality machined aluminum detachable magazine system (aluminum triggerguard; steel magazines) with a black powder coated finish. Significant improvement on the Remington DM for two major reasons:

  1. No side buttons so they will fit into most factory BDL stocks:*
    • no fitting on Bell & Carlson's stocks
    • minor or no fitting on Remington SPS stock
    • no fitting on H-S Precision stocks
    • no fitting on Manner's stocks
    • laminates may need minor fitting
  2. Single stack (vertical cartridge feeding) for smoother, more reliable follow up shots.
    • That is why the 5 round is taller than the staggered design of the Remington factory DM. This could be a drawback carrying a hunting rifle but is a big advantage for reliability. Also, check your local laws for any magazine capacity limits on BOLT ACTION hunting rifles. Some states limit capacity for hunting on semi-autos but not bolt guns, others may limit both so be sure to check.

Wyatts Detachable

Stockys take: The standard long and short action units we tested drop in to Bell & Carlson, Manners and most other synthetic BDL-type factory stocks very neatly, including the plastic SPS stock. There has been no fitting necesssary that I have observed (and tried many) on any of our composite stocks but you never know until you try it. We have seen two occassions where a small washer (spacer) was used under the front guard screw to get the proper fit, Wyatt will supply this with a phone call, or simply grab a pack at your local hardware store.

A no-brainer in my book for any 700 hinged-to-detachable conversion. Here's the photographic result of a torture test of these units along with some input. Dropped the magazine 300 feet on to a hard gravel parking lot and it still fed cartridges.

Important note: The Ultra Mag / .338 Lapua version is set up for forward seating those long, sexy SMK's / VLD's. Due to the extra length they should be installed by a qualified gunsmith as minor modifications needed to receiver and bolt stop (instructions included). No such issues on the standard long or short action.

Belted Magnums are fine in the long action ".300 Win Mag" assembly / magazines (i.e. 7mm Rem Mag, .300 Win Mag., .340 Wby Mag.)
Sorry, no Short Magnums in the .308 magazines.

The 300 Rum will work in the 5rd .300 Win Mag Assembly but will not work with the 10rd Assembly. 

The 22-250 will feed in the 5rd. 308 Assembly but will not work with the 10rd Assembly.

The .308 10rd magazines cannot be sent to California. 

Cartridge Family Capacity Available Maximum Cartridge O.A.L. Drop From Bottom Of Assembly
.223 10 Only 2.850" 3"
.308 5 or 10 2.880" 5 - 2"
10 - 5"
.30/06 -
.300 Win.
5 or 10 3.700 5 - 2"
10 - 5"
.300 RUM
.338 Lapua
5 or 8 3.790 5 - 2"
8 - 4"

Assembly includes the bottom metal with one magazine. Extra magazines are available below also.

Additional Info

Additional Info

Brand Wyatt's Outdoor


Perfet fit and actionReview by Tim
This was exactly as advertised. No mods needed. I got it for my rem 700 target tactical.308 with the bell & Carlson style 5 fully adjustable and it took 3 shims per side. So that would be my only advice is to order and extra shim kit. It comes with 2 and an extra pack of 10 is only $5. I have to say with my full length tactical pic rail and big vortex scope it’s much easier to load a mag then try to squeeze my finger down and try to load the internal magazine

Tim (Posted on 5/24/2020)
Perfect Fit and Flawless!Review by Anthony
The Wyatt's DetMag (M4) Flush Mount Detachable Magazine Assembly was flawless in my Bell and Carlson Medalist Light Tactical stock. I ordered mine with an additional 5rd. mag. No modification was needed. Within a few minutes everything was bolted down. The magazine was a light stiff to depress but with time it will loosen up a bit. I'm extremely happy with the setup. While the mag release is small it works great. (Posted on 12/14/2017)
Drop in was very good but 10 rd mag had a few issuesReview by Heath
The trigger assembly/drop in was flawless but the 10 rd mag was very hard to load in the later rounds. I am going to order a 5 rd bc I think that it will function better than the 10. I used it for my .308. I would recommend it but like I said the 10 rd mag had a few small issues.
Stocky's always is top notch when ever I order from them (Posted on 8/21/2016)
Works as advertisedReview by Keith
Superb addition to a Rem 700. System cycles flawlessly. Detachable metal magazine fit perfectly even after application of Cerakote for added durability. (Posted on 12/9/2015)
Awesome mag!Review by Dominick
Awesome up grade to my B&C medalist 2 stock. Literally took 5 minutes to install! Magazines snap in and detach with ease. Perfect for the range I have 4 magazines in total really great product. (Posted on 9/8/2015)
Work goodReview by Connor
It works good but the ten round mag is a pretty hard to reload without the speed reloaded that I found on another site. Also it fit perfectly into the bell and Carlson stock (Posted on 8/29/2015)
Great product Review by Anthony
This is a great drop in for your Remington BDL Stock! Easy to install. Goes great into the stock. The shells feed very well and eject with no problems. I like the 5 round magazines. They are not to long if your shooting prone or off the bench. The only con with it is that ejecting the magazine is is hard. Hopefully it will loosen up over time. But I love the product and I would highly recommend it if you want a drop magazine. I also had an issue with a different brand drop mag and the girls at stockys help led me get the right product. They were great to work with!!! (Posted on 8/19/2015)
Relatively easy upgrade to the Remington.Review by Daniel
Pros: Pretty close to just dropping into the stock. It took a couple of taps with a rubber mallet, but nothing that required removing or adding material. Easy enough for anyone to install it.

Cons: The magazines. Wyatt's are the only ones it will take; they're expensive and difficult to load. If the system used AT magazines it would be just about perfect. That said, once loaded, they work. (Maybe they can get together with Magpul...)
(Posted on 5/27/2015)
Awesome upgrade!Review by Ryan
Great upgrade to the standard hinged bottom metal. Install was simple with no modifications required!
Pros: drop in design, great price point, solid contruction
Cons: must use Wyatts magazines, mag release is small and sometimes difficult to depress (Posted on 2/9/2015)

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