SKU: 86380020937

CRIMSON NPAS - VFC Spec

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Description

CRIMSON NPAS - VFC SpecSave 1. 50 off a CRIMSON Patch when purchased together! Our 1j focused NPAS for a huge amount of VFC replicas is finally here! We've found from testing in a variety of VFCs that shot to shot consistency greatly improves when the CRIMSON NPAS is set to around 1j (More details below!). The full list of compatible VFC APFG Maruyama replicas the CRIMSON works with is below: VFC URGI GBBR (all variants) VFC 416 GBBR (all variants) VFC BCM GBBR (all

Save £1.50 off a CRIMSON Patch when purchased together!

Our 1j-focused NPAS for a huge amount of VFC replicas is finally here!

We've found from testing in a variety of VFCs that shot-to-shot consistency greatly improves when the CRIMSON NPAS is set to around 1j (More details below!).

The full list of compatible VFC / APFG / Maruyama replicas the CRIMSON works with is below:

  • VFC URGI GBBR (all variants)
  • VFC 416 GBBR (all variants)
  • VFC BCM GBBR (all variants)
  • VFC SR-16 GBBR (all variants)
  • VFC AK GBBR (all variants)
  • VFC KS-1 GBBR
  • VFC 727 GBBR
  • VFC M933 GBBR
  • VFC M733 GBBR
  • VFC M16A1 / M16A2 GBBR
  • VFC XM177E2 GBBR
  • VFC MP7 GBBR
  • VFC SR25 / M110 GBBR
  • VFC SCAR-H GBBR (all variants)
  • VFC 417/G28 GBBR
  • VFC PSG1 GBBR
  • VFC T91 GBBR (all variants)
  • VFC G36 GBBR (all variants)
  • VFC G3 / HK553 GBBR
  • VFC FAL / OSW GBBR - Install guide here!
  • VFC FNC GBBR (all variants)
  • VFC UMP45 / UMP9 GBBR
  • VFC PPSH GBBR
  • APFG MCX GBBR (all variants)
  • APFG MPX GBBR (all variants) - Install guide here!
  • Maruyama ISO 556 GBBR
  • Maruyama APC9 / SCW9 / SPC9 GBBR (all variants)
  • Marksman K1A GBBR

From CRIMSON:

Any power you could need without sacrificing any consistency

In collaboration with Waldo Dynamics, I am very excited to showcase our new and unique to the market VFC NPAS!

What makes the Crimson NPAS standout from the others on the market?

Let's cut to the chase, what makes this NPAS different from the rest? Especially if you already have one....

Our design incorporates a tighter internal bore which allows for far more consistent FPS results at the 0.9 - 1.2 joule range, making it ideal for anyone operating within those limits. A graph has been made, by the great guys at FireSupport, at the end of our product photos to demonstrate this against the stock valve. This clearly shows just how consistent then Crimson NPAS truly is. A game changer for such a small cost.

Also, don't worry; Just because the bore of the NPAS itself is narrower doesn't mean you can't also achieve higher energy outputs (we have seen past 2 joules on standard barrel lengths with 0.36g BBs). We are also testing reports that it is making people's GBBRs more gas efficient (so far it seems to be true from our tests).

The Basics:

An NPAS allows you to tune your GBBR to your desired FPS/Joule output easily and seamlessly in the field using a simple 1.5mm hex key (found in most hex key tool sets). Once installed (which is demonstrated here on our own very clear video), simply remove your bolt from your GBBR, adjust through the front of the nozzle with a hex key (Clockwise for less energy output, counter-clockwise for more), reassemble and test your results.

This is perfect for players looking to be under limits no matter the time of year, BB weight, or with gas/pressure used. It really is a "must-have" component.

The material used is a stronger Nylon Polymer in the iconic Crimson red, making it extremely easy to identify on your tech bench as well as when it is installed. You will not lose track of who's VFC NPAS is who's (not that you will need any others after this!).

Installing an NPAS will require some teching knowledge and a small amount of tools. Be careful when adjusting your NPAS to ensure you don't totally unscrew the adjustment screw, this goes for any NPAS on the market.

Crimson, it's red

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 86380020937

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4.1 ★★★★★
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Verified Purchase
Guy Tingos
Phoenix, US
★★★★★ 5
This is the one to get
Color: Black
I find having separate controls for temperature and foam density is critical and this model nails it. The "newer model" listed in the product description eliminates the separate controls and does not function as well. This frother also has nice features such as the ability to produce cold foam and easy cleaning. It is also extremely quiet. I've tried several mid-range electric frothers and this is the best.
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Reviewed in the United States on May 11, 2026
M
Verified Purchase
Mizz Road Runner
Whiting, US
★★★★★ 5
So far. so good.
Color: White
This is my 3rd frother that I purchased from Amazon. The others were brand name frothers that broken within a few months of use. I won't name here (hint: begins with an N and ends with an o) This Milk frother from Maestri however works excellent. Multiple heat and drink settings and makes the perfect foam every time. I especially like how the pitcher is removable from the electric base and can be washed with out worry. easy to use. Just read the manual to understand all the settings, makes a perfect froth in less than 2 minutes. I've only had this for a few weeks but I am impressed.
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Reviewed in the United States on February 11, 2026
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Verified Purchase
lvs
West Palm Beach, US
★★★★★ 4
Loving it so far!
Color: White, Color: White
02 Nov 2025 I've only used this twice and I already love it. My main reason for buying it is for protein hot chocolate I drink twice a day. I previously made it at the stove and that took 13 minutes of constant mixing to reach 160°. My hot chocolate is 1 cup of milk, 1 tbsp each cacao powder and panela (sugar), 1-2 tbsp collagen powder, vanilla extract, and 1 whole egg. I premix everything before pouring it into the frother because, while it may be able to handle the powders, there's no way that whisk will be able to break the whole egg enough to thoroughly blend it before it starts cooking. I'm totally fine premixing the night before and heating it in the morning. I made the first batch this morning with 2 cups of milk doubling only the cacao and sugar which brought it to just below the top max line, and it came out perfect. It was smooth and there was no burnt taste. I used the recommended hot chocolate attachments, lowest froth setting, and 160° temp setting. I had almost no froth in my hot chocolate which was perfect. I removed the pitcher as soon as it was done to prevent any burning. I checked the temp with a thermometer and the temp was actually 165°. I don't really know if that would impact the taste if there was less milk. For the 2 cups, it was still perfect. I do wish there was a little more temp control like a 150° or 155° setting. I also wish it was able to give you the temp as it was heating in case you want to pull it off just before it hit the set temp. The bottom right button is superfluous. It helps with the foam setting, but you can also simply press each of those buttons directly. Cleaning is super easy, just remove the pitcher and attachments. I love that the attachments are magnetic, but I recommend taking them out before pouring because the magnets aren't that strong. All in all, great for the price and perfect for my needs.
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Reviewed in the United States on November 2, 2025
O
Verified Purchase
Onyx
Los Angeles, US
★★★★★ 5
Works great with soy milk
Amazing steamer with high volume capacity. I can make large lattes. I love that it let's you choose your temperature. I use soy milk, and it works perfectly every time. When using at max temp, only a tiny bit of soy milk gets a little burnt on the bottom, and it scrubs right off. Since the little whipping tool comes off on the inside, it cleans very easily. I love that the little whipping tool is magnetically attached, too. It's super easy to work with and very secure. My 8 year old uses this all on her own without issue, which proves how easy it is. Highly recommend.
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Reviewed in the United States on March 12, 2026
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Verified Purchase
Lauren Pavone
Alexandria, US
★★★★★ 5
Great frother choice!
I love this thing! As a former barista, this frother does a wonderful job! I've done hot and cold foam and they held up great! Used oat milk once and that did a great job foaming up! It can take a few minutes for the foam, so when I start my coffee, I start the foam, too. It's also dishwasher safe, which I love.
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Reviewed in the United States on February 13, 2026

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