Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: What is the total length of the rail in inches?
Document: I had it completely installed in less than two minutes. Extremely stable and accurate. You will be amazed at how accurate this gun is with proper rail and sights.If you own an Umarex, please take my advice. You spent $450+ on the gun, spend a little more money. It is well worth. Last thing, I bought a total of six different rail systems trying to find one that fit. Whatever one your considering I probably already tried it. This is the one you want! !
Fits perfect on my MP5/ .22LR. Very low profile, fit and finish excellent. Light weight and only 3.5 inches. Looks factory.
Fits on mp5-22. But loose. And can only mount optics on one half of the rail. Don't bother with this
I put this on my 22 LR MP5 and it works great! Definitely beats out any other rail system for this rifle.
It works well on my Umarex MP5-22 rifle. I have no complaints especially at this price point. It's a good inexpensive rail mount.
I bought a couple of these and they fit great. They're not the longest rails but they get the job done, and it's nice to find a rail mount that fits properly over that raised block on the top of the receiver.
Great Mount for Umarex HK MP5 22 LR, This rail is a fraction of the price, of what you would pay for an HK mount. Works great, Install in less then 1 minutes. GREAT PRODUCT, You'll save a TON!
Great rail! Bought it for my H&K mp5 22lr to mount a red dot and the fitment, looks and functionality is absolutely great. It is an aluminum piece not plastic, thus far I've put around 500 rounds through the rifle with zero issues.
Works perfect price is great ,could be longer hence the 4 star rating .but price quality and good fitment can't be beat ! Mounted a p233 Nikon setup good and snug ,basically any ar15 tactical optics will fit this rail without a extension riser.
Just like every review says. Fits perfectly and took me all of 5 minutes to install. To think I almost pulled the trigger (haha) on the $99 rail from HKParts. Now I just need a decent red dot scope to mount on there. If anyone has suggestions please reply. Thanks
Answer: yes