G3 rifle compression springs data.

This info is taken from the Norwegian army T.M. TH 9-1005-25/225-14 and

pertains to the Norwegian version of the G3 rifle built under H&K license (AG3).

 

Designation Thread diameter Effective coils Diameter Free length Mounted lenght Length loaded

Tension, mounted

Tension, loaded
Measure

mm

  mm mm mm mm kg kg
Sear spring

0.63

9 id 2.5 15 9.8 8.1 3.06

3.8 +0.5

Hammer spring 1.25 25 id 4.7 63 59 38 1.9 11.9±0.7
Ejector spring 0.4 14 id 3.8 22 14.9 9.1 0.34 0.62±0.005
Recoil spring 1.25 95 id 8.2 460 304 131 4.93 +0.0 -0.6 10.4 +1.4 -0.0
Buffer spring 3.0 7 id 8.6 39.5 +0.0  -1.0 36 27 21 86
Firing pin spring 1.4 10 id 7.2 40 32 29 5±0.5 6.6±0.7
Locking lever spring 1.4 4 od 8.0 16.2 8.2 7.3 20.0 +1.5 -1.0 23.5 +1.5 -1.0
Rear sight spring 0.5 6 od 2.8 8 5 4.35 2.35 2.85
Rear sight drum springs 0.5 3 od 3.4 4.7 3.6 2.8 0.975 1.68
Magazine latch spring 0.9 3.5 id 6.2 13 7.9 5.5 2.74 4 ±0.4
Magazine spring 1.6 71/3 od 42x22 +0.0 -0.4 300 140 24 2.5 ±0.4 4.5

 

H&K parts numbers for above springs.

  Part. no. Ident. no. Q'ty per rifle
Designation     1
Sear spring   200493 1
Hammer spring   200498 1
Ejector spring   200478 1
Recoil spring 1013-04.08 200525 1
Buffer spring   200889 1
Firing pin spring 1013-02.05 200441 1
Locking lever spring 1013.02-16 200453 1
Rear sight spring 1013-101.09 200383 1
Rear sight drum springs   200388 2
Magazine latch spring 1013-01.25 200393 1
Magazine spring     1 per magazine

 

 

AG3 pics.