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Your cart is empty.Product Description
1. Insert a new, unused cartridge into the chamber
2. Screw on the cap
3. The cap should turn with little to no resistance
4. Continue turning until you feel resistance against the cartridge
5. From that point, continue tightening 1/4 turn further
- DO NOT OVER TIGHTEN THE CAP
BologneseBoy
Reviewed in the United States on June 5, 2025
Built so you don’t have to use the tool on the Bryna mags to screw/unscrew, instead use your fingers. Great concept, Makes reloading the COS tanks waaay faster. Only gripe is that no matter how tight it’s screwed on , a bit of tread will still show. Only reason why not a 5 star. BUT it still fires perfectly.
Dan L
Reviewed in the United States on May 9, 2025
Helpful, useful, overpriced.
CDA
Reviewed in the United States on May 27, 2025
It's made swapping out cartridges easier with the knurled cap.The knurled cap does make it easy to turn with or without gloves, now that I don't have toThe cap is painting and paint was already flaking off the thread.Oiled it up and wiped off, and the cap threaded easily, but still concerns about the paint flaking off already.Would have liked the hole to have also have the ability to use the Allen wrench if needed, or if the cap get's stuck.It's a bit on the high side for what it is and the condition out the box.
ian
Reviewed in the United States on May 22, 2025
The OPOSAD Fast Cap Adapter is an upgrade for users seeking faster, tool-free CO₂ cartridge changes. Unlike the stock cap requiring a hex key, this adapter features a knurled grip for easy hand-tightening, enhancing reloads’ speed and convenience, especially in time-sensitive situations.Made from lightweight aluminum alloy with a durable anodized coating, the cap feels solid despite its 15-gram weight (compared to the stock cap’s 20 grams).However, there are a couple of minor drawbacks. The OPOSAD cap’s circular hole is incompatible with the stock hex tool and standard tightening tools, limiting secure tightening beyond hand-tightening. It also benefits as a secondary option for those lacking finger strength to fully tighten the cap.Furthermore, when fully tightened, a small portion of the threading remains visible, though it doesn’t impact functionality or seal integrity. A flush fit would be more visually and mechanically satisfying and potentially more secure.Despite these minor annoyances, the performance and convenience of the Fast Cap Adapter remain worthwhile upgrades for most users.Pros:- Quick CO₂ changes- Knurled grip for hand tightening- Lightweight (15g vs. 20g stock)Cons:- Incompatible with the stock hex tool- Slightly exposed threads when fully tightened
Jack Aubry
Reviewed in the United States on May 21, 2025
Vine Program Review – Please See NoteThis is a review of the OPOSAD Fast Cap Adapter. A single adapter came in the package.This adapter for the Byrna self-defense launcher allows for replacement of the C02 canister without use of the tool built into the base of the magazine. It will not make the system viable for quick reloads in the field, but it does make practice easier. The cap adapter itself is machined metal that extends a few centimeters from the gas chamber of the system, where the factory cap did not. The metal seems to be of decent quality. However,, I don’t know about its ability to withstand wet conditions or how well it performs with the system if it is fired quickly enough for the cylinder to freeze and possibly make the cap harder to remove. As the adapter has no tool hole like the original (although it does have a hole), you will have to wait for it to thaw or use pliers (making the adapter pointless). The cap does not greatly hinder holstering of the system unless you are using a kydex holster, which may not accommodate it.I would recommend this cap to those who wish to practice more with the launcher system without going through the hassle of using the mag for reloading.Stars? – I rate products in the following way: 1 Star – Product does not even partially function in the manner described. 2 Stars – Product can function in a limited capacity as noted by the manufacturer. 3 Stars – Product delivers on advertised functions. 4 Stars – Product delivers on advertised functions and is otherwise well made with some issues of a universal nature. 5 Stars – Product delivers on advertised functions, is well made, price point is excellent, no issues other than personal preference.Note: This product was supplied to me at no cost via the Vine program at Amazon in exchange for an honest and thorough review. I request no products from the Vine program that I would otherwise be interested in purchasing.
DM
Reviewed in the United States on May 20, 2025
Threads okay without canister. With canister, it leaves exposed threads. The knurled pattern is small enough that it doesn't really offer adequate grip, especially with smooth gloves. The lack of allen tooling, which could certainly be machined instead of a round hole, means the oem magazine tool is of no help to tighten if needed.
Midwest Mike
Reviewed in the United States on May 17, 2025
Normal strength hand should work fine. If your fingers are weak or wet, it might be a little hard to remove. Does not have a hex hole in the center so a tool actually cannot be used.
James Eoe
Reviewed in the United States on May 14, 2025
Now Ive seen something similar to this but with a much different style of a handle but it was twice the price of this so I'm not complaining. Regardless, they both function the same. Literally just replaces the C02 cap and makes it far easier and quicker to remove said cap using this. Thing fits just the same as the original cap which is neat. My only real complaint is that I wish the threads werent so tall? Long? Basically this thing sits a bit higher than the original but that's honestly a preference than an issue.Id say wait a lil for a price drop of some kind before getting this cause even if its cheaper than the same but nicer product I mentioned, I dont think this thing is all that worth spending its current price right now. Once its cheaper though, snag it! Its very helpful.
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