Monocore Solvent Trap  Monocore Solvent Traps Versus Adaptive Solvent Trap™ Kits
Solvent traps can be purchased legally without a Form 1. However, you cannot modify, alter or redesign them into a device for silencing, muffling or diminishing the report of a firearm without first filing & receiving back from BATFE, an approved Form 1. Please be aware of the restrictions and regulations, and those within the state you reside.

Modular Solvent Traps vs. Monocore Solvent Traps

At their most basic level, solvent traps are very simple and basic design. But there is a huge demand for this basic item and as of the writing of this content the demand has been amplified by the demand in the general firearms market. There are three main types of solvent traps on the market: Traditional Cup Solvent Traps, Modular Solvent Traps and Monocore Solvent Traps. This list does not include the many other variations of homemade solvent traps, such as those made from automotive fuel filters and other automotive parts.
Initially, solvent traps utilizing a 6061 T6 or 7075 Aluminum tube, a sealed end cap, a threaded end cap and several aluminum or stainless steel cups (formerly freeze plugs) depending on the length of the tube, were by far the most popular. As a matter of fact, solvent traps utilizing tubes and cups are still the most popular type of solvent trap configuration, but demand for different materials, cup styles and end cap adapters has created a market that innovative CNC machine shops have happily supplied.

Like I mentioned above, the solvent trap market started with basic aluminum materials and cup designs. Many of the earlier solvent traps were converted from Maglite tubes, where the flashlight internals were removed and the flashlight hole was sealed or welded shut and the lightbulb side was replaced with a sealed end cap and the opposite end was fitted with a threaded end cap. The final touch was to fit the internals with freeze plugs, which were popular before cups were introduced as a more popular alternative. Eventually, freeze plugs were all but replaced many other cup designs andww styles hit the market. The standard measurements as the Maglite solvent trap market grew were simple and based off of battery size. The “do it yourselfers”, posting tutorials would teach through web sites, YouTube and other means, referencing the battery size of the Maglite being used. Some preferred a smaller build and would use a B-Cell Maglite, others preferred a larger build and would use a D-Cell, others would prefer a diameter between these two and would go with a B-Cell.

Eventually the CNC shops armed with the machines and CAD software saw the opportunity and machined these solvent trap tubes, along with cups and end caps that had much better fits than the DIY Maglite alternatives. This created more opportunity because there was a huge demand for stronger materials such as stainless steel, and stronger and lighter materials such as titanium.

Someone coming across this article that is new to the ‘solvent trap’ would most likely ask the question “why would the solvent trap market  have such a large demand for custom cup designs and materials stronger and lighter than aluminum, such as titanium?”

Well, many use solvent traps for trapping solvent so it does not spill allover the place when cleaning their firearms.  Some purchase higher grade solvent traps to clean their firearms and like the look of certain designs or the novelty of having the ‘best of the best’ when it comes to design and material. But the largest portion of demand that spurred further innovation in the solvent trap market is attributed to the ATF Form 1 Process. As mentioned above, solvent traps are very basic when it comes to their design. They resemble another item that is very basic in design, but if engineered correctly, highly effective in purpose and that is the suppressor (or silencer). When purchasing a serialized suppressor from a Class III Firearms Dealer, it is done through the ATF Form 4 Process. Class III manufacturers such as Gemtech, YHM, Osprey and OSS manufacture and serialize suppressors. These suppressors are then sold by Class III dealers. Customers purchase the these serialized suppressors as individuals or through an NFA Trust through filling out an ATF Form 4 with the Class III dealer, they pay for their suppressor and submit a $200 tax stamp payment. Upon approval, they can go pick up their serialized suppressor.

Completing a ATF Form 1 is something that you can do yourself. It has become very popular because it allows individuals to legally build and own their own suppressors. We at Armory Den sell solvent traps as firearms cleaning accessories. We understand though that much of the demand for solvent traps is for the purpose of completing the Form 1 process and converting solvent traps into registered suppressors. That is why we disclaim that we do not recommend this but we do provide the information needed throughout our site on the proper channel to take in order to successfully file a Form 1.

The Form 1 can be sent in as a paper copy or Efiled online through the Form 1 Efiling area. You complete the details just like with a form 4 but you don’t do it through a Class III dealer. You choose a serial number and then send in the Form 1 with the $200 tax stamp payment. Upon approval, you will receive a notice and you  The reason the Form 1 Process has become so popular is that the Form 4 process takes up to 8 times longer to process. At the time of this writing, a Form 1 can be approved in as little as a few weeks to a month and a Form 4 can take up to 8 months or longer to be approved.

After and only after receiving an approved Form 1 Application can any solvent trap modifications be done. Normally, after receiving notice of an approved Form 1, individuals will take their solvent traps to a local Class III manufacturer and have their end cap and cups bored out for the caliber they will be installing the Form 1 Suppressor on. Others may use a Precision Jig Kit to drill the holes themselves. It is important to reiterate that these holes or bullet passageways cannot exist prior to the Form 1 being approved.

So what does this have to do with a monocore solvent trap?

Monocore solvent traps came into the spotlight after solvent trap manufacturers saw an opportunity to meet the Form 1 demand. Many registered suppressors are designed with a monocore baffle, which is a single baffle as opposed to multiple baffles (or cups when referring to solvent traps). The benefits are that they can be easier to maintain and also they are highly effective in sound suppression. Many low cost options started popping up on sites like Aliexpress disguised as car cleaning parts for trapping solvent during car repairs. One major problem with ordering monocore solvent traps from Chinese suppliers is that you may get something of questionable quality. You never want to put a low quality part on the end of your gun. Another problem with ordering monocore solvent traps off of places like Aliexpress is that you can easily place the order, but many don’t know that you may actually be importing an unregistered suppressor.

The Firearms and Ammunition Technology Division (FATD) of the NFA has strict rules and regulations when it comes to what they deem a suppressor. The problem is, the NFA is notorious for having extremely vague and illogical rules that have limited information publish when it comes to the specifics. For instance, there are many solvent trap manufacturers in the United States that produce cups with center markings. Center markings help those that will Form 1 their solvent trap know where to drill the holes. Center marks are consider to show “Constructive Intent” because the center markings are intended for drilling. This one is obvious, but many producers of solvent traps have no clue they are in violation. Another rule is that solvent trap cups must have angles of 60 degrees or less. Though most cups have 60 degree angles or less, some do not. This is also a case of “Constructive Intent” because in the eyes of the NFA, angles greater than 60 degrees imply they are built for more optimal ballistics, for when a bullet is traveling through the center of the drilled cups.

Monocore solvent traps have a single baffle and most of them have a hole bored through the entire baffle. Many believe that because the end cap is still sealed that they are in the clear to own a monocore prior to receiving an approval on their Form 1. The NFA/ATF may view this differently because in theory if a monocore solvent trap is placed at the end of a pistol or rifle and that firearm is discharged, it’s very probable that the round will travel through the center of the monocore baffle and exit through the end cap, or blast the end cap right off the tube.

It becomes even riskier when ordering monocore solvent traps from Chinese companies, as it is rumored that they come with open end caps that can be swapped out for sealed end caps. These end caps look like a ring and replace the sealed end cap and essentially convert the solvent trap into a full blown suppressor. Ordering from overseas means they are imported, so now you are not only purchasing an unregistered suppressor, but you are importing one too.

In our experience, even if you purchase a monocore solvent trap after completing and receiving the green light on your Form 1, it still may not be the best route. Holes are predrilled normally at a size for a 9mm round. Therefore, if you are planning to Form 1 for a smaller caliber, sound reduction is nowhere near as good as if you were to purchase a Modular Solvent Trap Kit with a Precision Jig Set.

Adaptive Solvent Traps (A modular solvent trap design) And Our Solvent Trap Tube Kits are great for cleaning, storage and more! 

We offer modular solvent traps and tube kit solvent traps for the most efficient cleaning there is and we provide guides on how to use them on our product pages. Our Adaptive Solvent Trap have a unique modular design, and they can and Tube Kit solvent traps, but this design is so new that it is no surprise. Armory Den’s 1.58” 7075 Type III Anodized Billet Aluminum Modular Solvent Trap is a good example of a versatile solvent trap, that does not have center markings and has cups that are 60 degrees. So from a legal point of view, this solvent trap is 100% NFA/ATF compliant. Though we at Armory Den sell our traps as firearm cleaning accessories, we understand that there are many customers that purchase solvent traps to legally Form 1 them.

When you order a 1.58” 7075 Billet Aluminum Modular Solvent Trap Kit from Armory Den, you will receive a legal solvent trap kit with a 1/2×28” and 5/8×24” threaded end cap, a 1-3/16×24” TPI end cap adapter, a 3” base tube, modular cups and an ‘unmarked’ sealed end cap. This modular kit Is under 12 oz. in its maximum configuration of 8.25”. One of the best things about this solvent trap is that cups can be removed for a variety of length configurations.

Besides being an extremely high quality and versatile solvent trap, it comes with everything you need to adapt to the most popular items that the industry offers. For those that want to direct thread to calibers ranging from 9mm, .22LR, to 6.5 Creedmoor or 30 Cal barrels, we’ve provided both of the most popular threaded end cap adapters. Other’s may want to use a booster, muzzle break or QD adapter and that is why we have included the 1-3/16×24” end cap adapter.

When it comes to deciding on whether to take the grey area and purchase an inferior monocore or to take the legal route for the intended use of cleaning and purchase a superior Adaptive Solvent Trap with a modular design, that will allow you to improve routine bore cleaning processes, efficiency, safety, reliability, and overall performance of your firearm.

Monocore Solvent Trap

Fast Free Shipping, Nationwide.

Armory Den is a US company and wholesale supplier. We have east coast and west coast facilities in order to satisfy our customers from both ends of the country. We take pride in our den deliveries and provide fast free shipping to both our customers and businesses, as well as our wholesale partners. We rarely have problems with satisfying our deliveries, even with natural disasters and situations outside of our control.

If you’re a business interested in becoming a Den Wholesale Partner and reselling our products you may submit our wholesale solutions form below. For general inquires, give us a call or us the ‘Contact Us’ form below. A representative from the den will be getting back to you shortly. 

Monocore Solvent Trap

Guaranteed Customer Satisfaction.

Our 5 star customer reviews published on various sites such as Gun Broker and Trust Pilot, reflect our ability and drive in bringing only the best solvent traps and parts from around the world while providing top-notch customer service!  Solvent Trap Direct has one goal and that is to exceed all expectations!

Quit overpaying for solvent traps or worse, overpaying for inferior products! We keep the best 7075 type III hard-coat anodized billet machined aluminum solvent traps, titanium solvent traps, and stainless steel solvent traps in stock at all times. If you’re still looking for a reliable solvent trap products you came to the right place!

Fast Free Shipping, Nationwide.

Armory Den is a US company and wholesale supplier. We have east coast and west coast facilities in order to satisfy our customers from both ends of the country. We take pride in our den deliveries and provide fast free shipping to both our customers and businesses, as well as our wholesale partners. We rarely have problems with satisfying our deliveries, even with natural disasters and situations outside of our control.

If you’re a business interested in becoming a Den Wholesale Partner and reselling our products you may submit our wholesale solutions form below. For general inquires, give us a call or us the ‘Contact Us’ form below. A representative from the den will be getting back to you shortly. 

Fast Free Shipping, Nationwide.

Armory Den is a US company and wholesale supplier. We have east coast and west coast facilities in order to satisfy our customers from both ends of the country. We take pride in our den deliveries and provide fast free shipping to both our customers and businesses, as well as our wholesale partners. We rarely have problems with satisfying our deliveries, even with natural disasters and situations outside of our control.

If you’re a business interested in becoming a Den Wholesale Partner and reselling our products you may submit our wholesale solutions form below. For general inquires, give us a call or us the ‘Contact Us’ form below. A representative from the den will be getting back to you shortly. 

Monocore Solvent Trap
Monocore Solvent Trap

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**Armory Den will not reply to inquiries and questions related to Form 1 builds and/or modifications. We sell solvent traps for cleaning purposes, and we do not recommend or endorse any modifications to our products. All visitors should review our ATF Legal Den and website Terms & Conditions for more information, prior to purchasing products form our site.

Please fill out the form below to learn more about our wholesale solutions and bulk order discounts. One of our den representatives will contact you shortly.

**Armory Den will not reply to inquiries and questions related to Form 1 builds and/or modifications. We sell solvent traps for cleaning purposes, and we do not recommend or endorse any modifications to our products. All visitors should review our ATF Legal Den and website Terms & Conditions for more information, prior to purchasing products form our site.