Older Sig P220 frames "90" model

[h1x]

I am looking at a very lightly used P220 . By the serial number it was made in 1990. Any problems with older aluminum frame pistols like being brittle? The frame rails look good and still have the black anodized finish.

[HCM]

I am looking at a very lightly used P220 . By the serial number it was made in 1990. Any problems with older aluminum frame pistols like being brittle? The frame rails look good and still have the black anodized finish.

Brittle ? No.

If the rear section of the frame rails still has it's (original) black finish indicating low round count it should be GTG.

[Brian T]

Does the serial number tell you the build year?

I thought it was the 2-letter code on the bottom of the slide near the muzzle.

A-0
B-1
C-2
D-3
E-4
F-5
G-6
H-7
No I
J-8
K-9

[h1x]

Brian T,

Your correct, Sig did ask me for that number under the barrel.

[John Hearne]

The two piece breech block is not ideal. A pistol of this vintage would require two maintenance considerations. First, regularly replace the two pins that retain the breech block as they will eventually break. Second, replace the recoil spring every 3,500 rounds.

[Sero Sed Serio]

A guide to inspecting SIG frame rail wear:

https://grayguns.com/guide-to-sig-sauer-pistol-inspection/

As John Hearne indicated, the older style 2 piece carbon slides require more maintenance and are less durable than the newer one-piece slides. The P220s are very shootable guns, but if you’re looking for a high round count gun, there are far better options in .45.