It is about 4 bits. There is really not much to go wrong in there.
And by the same logic, my car consists of about five bits(main body + four wheels). However, if by "about four", you mean "about thirtyfour" you would be correct.
How many parts does a Glock have?
According to the current manual the Glock has about 34 parts. They are:
# Part
1 Slide
2 Barrel
3 Recoil spring assembly
4 inapplicable, incorporated in part 3
5 Firing pin
6 Spacer sleeve
7 Firing pin spring
8 Spring cups
9 Firing pin safety
10 Firing pin safety spring
11 Extractor
12 Extractor depressor plunger
13 Extractor depressor plunger spring
14 Spring-loaded bearing
15 Slide cover plate
16 Rear sight
16a Front sight
17 Receiver
18 Magazine catch spring
19 Magazine catch
20 Slide lock spring
21 Slide lock
22 Locking block
23 Trigger mechanism housing with ejector
24 Connector
25 Trigger spring
26 Trigger with trigger bar
27 Slide stop lever
28 Trigger pin
29 Trigger housing pin
30 Follower
31 Magazine spring
32 Magazine floor plate
32a Magazine insert
33 Magazine tube
34 Locking block pin (some models)
35 Channel Liner
The actual total number is open to a great deal of interpretation:
- #3: the 'Recoil spring assembly' is made of several parts
- #8: the 'Spring cups' are 2 parts
- #16 & 16a: the 'Front and Rear sight' are 2 parts
- #23: the 'Trigger mechanism housing with ejector' is made of several parts
- #26: the 'Trigger with trigger bar' is made of several parts
- #34 the 'Locking block pin' is not found on some models
- #32 & 32a: the 'Magazine floor plate and Magazine insert' are 2 parts
- Adjustable sights have a lot of individual parts