HK Locking Piece Reference Guide
# On Piece
|
Weapon
|
Barrel Length (inches)
|
Options
|
Degrees
|
1
|
11 alt
|
17.7
|
|
40
|
2
|
|
|
|
|
3
|
33,93
|
16,15.5
|
|
58
|
4
|
|
|
|
|
5
|
MP5SD
|
Ported
|
|
120
|
6
|
13 alt
|
17.7
|
|
58
|
7
|
33,93-53
|
16,15.5,8.9
|
|
55
|
8
|
33,93
|
16,15.5
|
|
53
|
9
|
11e
|
22
|
|
40
|
10
|
13alt
|
|
|
55
|
11
|
23,11
|
|
|
|
12
|
21a1 alt
|
17.7
|
|
45
|
13
|
53 alt
|
8.9
|
|
70
|
14
|
13a3 lmg
|
|
|
58
|
15
|
53
|
8.9
|
|
65
|
16
|
MP5K
|
5.5
|
|
110
|
17
|
21E
|
22
|
|
36
|
18
|
G3K
|
12.7
|
|
50
|
19
|
PSG1
|
|
|
40
|
20
|
23E
|
|
|
70
|
21 – 21A
|
G41
|
|
|
43
|
22A
|
G41K
|
|
|
45
|
23T
|
MSG 90
|
|
Titanium
|
40
|
24
|
MP510/40
|
8.9
|
Low impulse
|
90
|
25
|
MP510/40
|
8.9
|
Hi impulse
|
60
|
26
|
MP540
|
8.9
|
40cal
|
26
|
27
|
MP5K
|
5.5
|
|
90
|
28-80
|
MP5K-PDW
|
5.5
|
Stock-Can
|
80
|
29
|
MP5KA1
|
5.5
|
|
70
|
30T
|
MSG 90
|
|
Alt
|
40
|