Hi Capa Recoil Spring Question

[iKliiu]

Is there any difference between the diameter of a Hi Capa Recoil spring and a 1911? I know that the Hi Capa is slightly longer, but other than the length, are they identical?

[Slono]

Originally Posted by iKliiu

Is there any difference between the diameter of a Hi Capa Recoil spring and a 1911? I know that the Hi Capa is slightly longer, but other than the length, are they identical?

Yep, as far as I know they're interchangeable otherwise.

[ILLusion]

Originally Posted by iKliiu

Is there any difference between the diameter of a Hi Capa Recoil spring and a 1911? I know that the Hi Capa is slightly longer, but other than the length, are they identical?

They are not identical. 1911 recoil springs have a slightly smaller outer diameter. By "slightly smaller", I mean like... 1mm or less.

In most some cases, it doesn't mean anything, but first generation Marui MEU's and most Colt M1911A1's had a smaller inner diameter spring plug compared to the spring plugs I've seen in the past year and a half. This amounts to probably half of the Marui single stacks already sold at this time. This smaller inner diameter spring plug resulted in the inability to use Hi-Capa springs, as the larger Hi-Capa spring would not seat all the way inside the tighter spring plugs.

I'd noticed Tokyo Marui had re-tooled their spring plug mould some time about two years ago, as I started getting single stacks that started to be able to fit Hi-Capa springs.

So... with all that said, using a Hi-Capa recoil spring *may* or may *not* work... depending on when your gun was manufactured. If you have no clue when your gun was made, assume you will have a 50% chance of being unable to use a Hi-Capa spring with it.

[iKliiu]

Ok, shouldn't be a problem because I am actually using it for the bolt of an AEG. My 1911 spring fit, but was a bit short so the Hi Capa should be perfect.

[ILLusion]

Ah... well... I don't know about that, as the lengths are exactly the same between the two.

[iKliiu]

Oh, I thought the Hi Capa was a bit longer. What about another pistols, like the M9 or a DE?

[ILLusion]

Originally Posted by iKliiu

Oh, I thought the Hi Capa was a bit longer.

Nope. Exactly the same. They're probably the exact same item coming out of the factory.

If you want to consider aftermarket/upgrade recoil springs, there are a few on the market that are longer than stock. For example, out of all the recoil springs I have in stock, the Firefly set is the longest.

Originally Posted by iKliiu

What about another pistols, like the M9 or a DE?

TM M9 recoil spring is shorter, but has a slightly smaller diameter.

TM DE recoil springs are longer, but have a very very small diameter. The DE uses a dual rod system, each rod having a diameter of approximately 3mm. The springs are narrow to match.



My best recommendation is to take a high power upgraded recoil spring with the diameter and expansion rate to match your needs, then stretching the spring to match.

[iKliiu]

Ok, I might just get the Hi Capa spring and add another short spring. Which guns have the longest springs (p226, glock variants)?

EDIT: What about the 1911 MEU vs HI Capa vs 1911? Are they still all the same?

[ILLusion]

Hi-Capa 5.1, 1911, and MEU all share the same length springs. They also have the longest springs.

Again, aftermarket options will yield longer springs.