SB-37H parts kit

It includes all necessary hardware and stainless steel plates.

Hardware List:

NAME	QUANTITY	LOCATION
M3×20 Rivet connector (Chicago bolt/sex bolt)	4	Barrel
M3×350 threaded rod	4	Barrel
M3 hex nut	4	Barrel
M5×30 socket head bolt	2	Rear sight(1), Stock(1)
M5 hex nut	10	Rear sight(1), receiver inserts(8), stock(1)
M4×10 socket head bolt	1	Barrel latch
M4 hex nut	1	Barrel latch
1.6” Length x 0.22” OD x 0.02” Wire Diameter Spring	2	Barrel latch
∅10mm×45mm Stainless steel rod	1	Barrel hinge
M5×16 flat head screw	10	Receiver inserts(8), stock(2)
M5×10 flat head screw	2	Rear receiver insert
M5 brass insert	2	Rear receiver insert
∅4×45mm Stainless steel rod	5	Rear receiver insert
6mm OD 4mm ID tube, 21mm long	1	Hammer
M5×25 socket bolt	1	Pistol grip
M5 square nut	1	Pistol grip/trigger guard
M4×30 socket head bolt	1	Hammer
AR-15 Mil-spec trigger	1	Trigger
AR-15 trigger spring	1	Trigger
AR-15 hammer spring	1	Hammer
M3×30 button head screw	3	Firing pin assembly
M3 hex nut	1	Firing pin assembly
20mm long×8mm OD×0.7mm wire spring	1	Firing pin return spring
1.66”OD×14” long 17 gauge fence post	1	Barrel

 

Plate list:

• Hinge insert 0.25″
  
• Barrel retainer plate 0.100″
• firing pin retainer plate 0.100″
• hammer core 0.187″ (M4 tapped, 4×4mm holes drilled, reamed, extra weight inserted and spring assembled)
  
• Breach face 0.25″(M3 tapped, barrel retainer latch chamfer grinded)
• Receiver side plate 0.125″ (edge deburred, fastener holes countersank, overall sanded)