what size chain?..its wore off bar

the writing is wore off the bar telling what size chain i need..its a ms170..i know the standard for this saw..but i wanna make sure

MS 170 Chain Saw

DISPLACEMENT
30.1 cc (1.8 cu. in.)

ENGINE POWER
1.3 kW (1.7 bhp)

WEIGHT (powerhead only)
3.9 kg (8.6 lbs.)

FUEL CAPACITY
250 cc (8.5 oz.)

CHAIN OIL CAPACITY
145 cc (4.9 oz.)

Per Stihl site:

OILOMATIC® CHAIN
3/8" PMM3

GUIDE BAR LENGTHS
(Recommended ranges)
30 to 40 cm (12" to 16")
STIHL ROLLOMATIC® Mini

Note: STIHL recommends #3610 (61 PMM3 55) OILOMATIC® saw chain and 16" 3005 008 3913 guide bar combination.

the chain thats on it....is marked on the links stihl c and pm..i guess its 14 inch bar....but my main question is the guage and drive links

Here's the table version (bookmark it):

http://www.stihlusa.com/chainsaws/comparison.html

Count the drive links. Usually an even number.
The saw shop by me makes chain all the time, they want the old chain & count the drive links & make a new chain with that many drive links.
61 PMMC3 50 ---
6 = 3/8 pitch
1 = .043, bar grove width
P = Picco
M = micro
M = mini
**They just quit using "C" as an identifier on the latest chart.**
3 = Single-Humped Drive Link
50 = Drive links

Stihl; chain:
http://www.stihlusa.com/chainsaws/types.html

The "C" used to designate a "Comfort" chain. "C" chains had slightly angled the cutter links to reduce vibration. I think thats universal for all their chain now.

Manually count the drive links and measure the thickness of your drive links with a cheap veneer caliper. Easiest way to know 100% what you have. Measure drive link thickness at the point between two tie straps.

http://www.harborfreight.com/6-inch-digital-caliper-47257.html