Order by 2pm Mon-Fri for same day dispatch

  • Next Day Delivery

    Order by 2pm Mon-Fri

  • Stealth Packaging

    Plain box with no name or branding

  • Customer Helpline

    0345 5480 420
1 3
Simrell  |  SKU: SI-2660

Simrell FMJ for Dynavap

£10.00
VAT included Shipping calculated at checkout.
Earn 1 Point on this purchase. Learn more

Delivery & Shipping

We have a variety of delivery options available at checkout.

  • Standard Delivery (2-4 Days) | Free over £20
  • Royal Mail 24 | Free over £50
  • RM Special Delivery by 1pm | Free over £200
  • DPD Next Day (M-F) | Free over £100
  • DPD Saturday Delivery | £6.95-£12
  • Wholesale Next Day £10

You'll need to order by 2pm Mon-Fri for Same Day Dispatch!

Warranty Information

Our in-house technicians can solve any problems or faults right here in the UK,
saving you the hassle of shipping your vape abroad if it goes wrong.

Just fill out our warranty enquiry form, and let us handle the rest!

If you get stuck, please email us or give us a call at 0345 5480 420

Our office hours are 9am - 6pm | Mon - Sat

The FMJ is a revolution in ease of use for all Dynavap vaporizers with a “Captive Cap”.

Simply slide it over a captive cap and it’ll snap into place, eliminating the need to rotate the cap at all. The thermal retention of the copper jacket holds heat for a full 60 seconds, allowing you to get a 1 hit extraction from the dynavap cap.

The Logo on the FMJ is actually an Aim point. Simply take a single flame lighter, point it at the S logo (( making sure the color change of the copper is the same size as the S )) and you will get perfect results every time!

The FMJ accents the cooling of the Simrell Vortex System really nicely.

Meet the FMJ. A Full Metal Jacket constructed to extract a full chamber in 1 heat cycle. Made from 99.99% Copper, the FMJ transforms your cap into a powerful one-hitter. How? Simply slide the jacket onto a CAPTIVE CAP. The FMJ will change the way you use a DynaVap vapcap.

Why Copper?

The use of copper on the cap eliminates the need to rotate your tip to get an even heat up. It acts as a thermal reservoir that holds heat and evenly distributes it, allowing YOU to choose how dense and dark you want your extraction during your first heat cycle.

The copper jacket also acts as a better buffer for combustion, allowing you to worry less about your reaction time after the click. 

Heat It Up

Simrell's signature logo is more than a symbol of authenticity. The logo on the FMJ serves as a visual reference point for your torch.

For the perfect heat up, direct the flame at the Simrell logo. As the copper heats up, it will begin to change color. When this “hot-spot” is the size of the logo, you're at the perfect distance to heat the cap. Once it clicks, you will have approximately 60 seconds to clear the bowl.

Advanced Heat Method 

By covering the airport on your stem, you will increase the pressure and the temperature inside of the chamber, resulting in the darkest roast possible. If you leave the airport wide open during your session, you will have lower pressure in the chamber and get a lower temp less dense extraction. To modify your roast, adjust the chamber heat/pressure by adjusting your airport usage.

Customer Reviews

Based on 86 reviews
90%
(77)
3%
(3)
0%
(0)
1%
(1)
6%
(5)
100.0
G
Gary A.
Simrell FMJ

This simple add on changes the whole Dynavap experience, making an already great device an amazing device.

L
Lukasz L.
Perfect service

Perfect service

J
Jackson
Oh tarnished, oh tarnished

Disperses heat like a toaster, don’t ride the click too hard or it a roast ya.

k
kelly d.
Disappointed

nowhere near as good as the silver vaphit FMJ. I do not recommend.

b
ben f.
Fmj

Great, definitely worth the purchase and great company to purchase from

K
Kellt
This toxks

Such a simple device can turn ur Dynavap into a 1 hitter no joke , fantastic device.

S
Steven R.
Simrell FMJ

Fast post delivery and the Simrell FMJ has improved my Dynavap M. It now heats more evenly with more predictable results.
Now I need Simrell titanium performance kit but it's sold out everywhere.
Volcano is king tho for tasty vapeat low temp.

A
Anonymous
Awful copper taste

Causes an awful taste. I've thrown it away as copper oxide is toxic. I'll be looking for a stainless steel one instead.

123
Simrell FMJ for Dynavap - Vapefiend UK
Simrell

Simrell FMJ for Dynavap

£10.00
The FMJ is a revolution in ease of use for all Dynavap vaporizers with a “Captive Cap”.

Simply slide it over a captive cap and it’ll snap into place, eliminating the need to rotate the cap at all. The thermal retention of the copper jacket holds heat for a full 60 seconds, allowing you to get a 1 hit extraction from the dynavap cap.

The Logo on the FMJ is actually an Aim point. Simply take a single flame lighter, point it at the S logo (( making sure the color change of the copper is the same size as the S )) and you will get perfect results every time!

The FMJ accents the cooling of the Simrell Vortex System really nicely.

Meet the FMJ. A Full Metal Jacket constructed to extract a full chamber in 1 heat cycle. Made from 99.99% Copper, the FMJ transforms your cap into a powerful one-hitter. How? Simply slide the jacket onto a CAPTIVE CAP. The FMJ will change the way you use a DynaVap vapcap.

Why Copper?

The use of copper on the cap eliminates the need to rotate your tip to get an even heat up. It acts as a thermal reservoir that holds heat and evenly distributes it, allowing YOU to choose how dense and dark you want your extraction during your first heat cycle.

The copper jacket also acts as a better buffer for combustion, allowing you to worry less about your reaction time after the click. 

Heat It Up

Simrell's signature logo is more than a symbol of authenticity. The logo on the FMJ serves as a visual reference point for your torch.

For the perfect heat up, direct the flame at the Simrell logo. As the copper heats up, it will begin to change color. When this “hot-spot” is the size of the logo, you're at the perfect distance to heat the cap. Once it clicks, you will have approximately 60 seconds to clear the bowl.

Advanced Heat Method 

By covering the airport on your stem, you will increase the pressure and the temperature inside of the chamber, resulting in the darkest roast possible. If you leave the airport wide open during your session, you will have lower pressure in the chamber and get a lower temp less dense extraction. To modify your roast, adjust the chamber heat/pressure by adjusting your airport usage.

View product