Canadian Airgun Forum

I'm about to buy the Crosman Optimus 0.177 and I was wondering, is there any way to make the 495 FPS version shoot like the 1200 FPS version of the gun without spending $70 dollars on the cleaning/care package with the 1200 spring

Hi - welcome to the CAF!

One question - do you have your PAL?

If not; what you propose would be very illegal.

If so - why not just buy the PAL rated one?

Shop around, like local gun shop selling PAL rated Vantage NPs for 149. You pay about that much just for a non PAL rated version. Then the piston or the spring, after taxes and shipping.

Look at the Ruger Airhawk @ walmart. Its a much better gun then the Vantage/Optimus, and its only 99 + taxes.

No and yes depending on how your Optimus has been detuned for Canada.

There is a thread here somewhere (search) that details 3 different methods. If you have the correct full power piston that allows a full stroke, and doesn't have a bleed hole, then a 20 buck spring will do what you want.

I found my Optimus to be pretty harsh / violent at full power. Its a light gun and one of Crosmans better looking ones in my opinion. Other than the baby poop brown finish.

I tried a Nitro Piston in mine, but that was also teeth jarring, so since I had already done the conversion I put a low power gas ram in it. Shoots like a dream now.

Since I only hunt paper, 1000fps doesn't do much for me anymore, but for longer distances or hunting then it's much better.

I don't have a chronograph but based on duct seal penetration it shoots about like all my other sub PAL rifles.

By the way, unless you enjoy tinkering around, it is always cheaper in the long run to buy what you really want initially, PAL rated for example, unless of course you plan on getting your PAL later but want the rifle now.

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When the 425-hp "street Hemi" version hit the street in 1965, it was akin to taking an M230 chain gun to an arcade shooting gallery
Peter

My 495fps .177cal Optimus has the 170mm piston (with no vent hole) rather than the 150mm for the full power version. The mainspring was a skinny .098" wire thickness. Installing a full power spring brought the rifle to approx 750fps with 7.9gr pellets. I ended up detuning it to around 630ps. It's sweet to shoot.

My full power .177cal Optimus was doing approx 960fps with 7.9gr but I detuned it to 800fps for more shooting pleasure.

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If you want a full power Optimus you can buy one for $200 (ship included) from Cabelas. Eric at scopesandammo.com has a great deal right now on the full power.177cal Crosman Vantage for $110. You couldn't convert a detuned to full power for that price. The Vantage is an Optimus with a slightly different wood stock contour.

Seeing in a thread that your under 18, so safe to assume you do not have your PAL. AKA firearms license, Doing any mods that pushes the FPS over 500 FPS is illegal. You get caught, can goto jail.

Hey Ricky, It looks like you're just under the limit to possess and acquire a firearm which anything over 500 fps is. You could sit on the idea for a year or take other steps. Here's a link to some things you can do while under the legal age limit. http://www.rcmp-grc.gc.ca/cfp-pcaf/fs-f ... ur-eng.htm

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