Huben

Huben K1 spare parts catalogue

Choose a part group, or use the exploded diagrams to find exactly where a part sits; clicking a number on a diagram takes you to that part's page.

143-part catalogue

16Barrel and moderatorBarrel, shroud, moderator baffles, rail frame and fixing screws.15Air tube and fillingTitanium tube, regulated tube, fill cap, check valve and pressure gauge.14RegulatorConstant pressure regulator, its internal seals and the adjustment screw.29Magazine and feedRotary magazine, magazine base, indexing and release mechanism.8ReceiverReceiver block, back cover and the parts that join the receiver to the stock.19Firing and valvesStriker, opening and closing valves, brass valve housing and seals.27Trigger and safetyTrigger, trigger arm, sear mechanism and safety lever.7Power adjustmentPower wheel under the stock and the adjustment stem.8StockStock, cheek rest, butt pad and fittings.

Exploded diagrams

Receiver, valves, trigger and magazine mechanism

Diagram 1

Barrel, barrel housing and magazine

Diagram 2

Regulator

Diagram 3

High pressure tube and fill cap

Diagram 4

Regulated pressure tube

Diagram 5

Barrel shroud, moderator, rail and trigger

Diagram 6

Power adjustment mechanism

Diagram 7

Stock and general assembly

Diagram 8

All parts

No.	Part	Size	Group
1	Receiver Housing		Receiver
2	Screw on Top of Receiver	M3.5x8	Receiver
3	Metal Seal of Opening Valve		Firing and valves
4	Plastic Seal of Opening Valve		Firing and valves
5	Opening Valve		Firing and valves
6	Open Firing Valve O-Ring	11.6x1.8 NBR90 + molybdenum disulphide	Firing and valves
7	Striker Plastic Cap Cover		Firing and valves
8	Striker		Firing and valves
9	Striker Spring	7x31x1	Firing and valves
10	Striker Spring O-Ring	13x3 NBR90	Firing and valves
11	Striker Spring Base		Firing and valves
12	Receiver Back Cover Plate		Receiver
13	Receiver Back Cover Plate Allen Screw	M5x14	Receiver
14	Plastic Close Valve		Firing and valves
15	Close Valve Spring		Firing and valves
16	Close Valve Spring Stem		Firing and valves
17	Close Valve Dynamic Wheel Adjust Spring		Firing and valves
18	Close Valve Brass Housing Internal to Stem Seal		Firing and valves
19	Close Valve Brass Housing Internal Seal Top		Firing and valves
20	Close Valve Brass Housing Internal Seal Btm	6.4x1.2 NBR90 + molybdenum disulphide	Firing and valves
21	Brass Housing O-Ring	17x1.5 NBR90	Firing and valves
22	Close Valve Brass Housing		Firing and valves
23	Close Valve Dynamic Pressure Adjust Threaded Screw Top		Firing and valves
24	Safety Lever Detent Ball		Trigger and safety
25	Safety Lever Detent Ball Spring	3x5.5x0.6	Trigger and safety
26	Safety Lever Adjust Tension Allen Set Screw	M4x6	Trigger and safety
27	Safety Lever		Trigger and safety
28	Striker Sear		Trigger and safety
29	Receiver Striker Sear Catch Pin	Ø3.5x16	Trigger and safety
30	Black Plastic Receiver Pin Cover	3.5x5.6	Trigger and safety
31	Sear Spring	5.3x13x0.5	Trigger and safety
32	Sear Catch		Trigger and safety
33	Receiver Trigger Arm Pin	Ø3x16	Trigger and safety
34	Black Plastic Receiver Pin Cover	3x4.6	Trigger and safety
35	Trigger Arm		Trigger and safety
36	Sear Catch Arm		Trigger and safety
37	Sear Catch Arm Pin	Ø3x19	Trigger and safety
38	Black Plastic Receiver Pin Cover	3x5.6	Trigger and safety
39	Trigger Tension Fine Adjust Spring	2.5x11x0.5	Trigger and safety
40	Trigger Tension Fine Adjust Spring Base	M5x10	Trigger and safety
41	Receiver Pressure Gage O-Ring	4x1.5 NBR90	Air tube and filling
42	Receiver Pressure Gage		Air tube and filling
43	Plastic Housing for Magazine Indexing Arm		Magazine and feed
44	Magazine Indexing Arm		Magazine and feed
45	Magazine Indexing Spring		Magazine and feed
46	Magazine Release Arm Tension Spring	2.9x30x0.6	Magazine and feed
47	Magazine Release Pusher		Magazine and feed
48	Metal Surround to Gauge and Magazine Release Arm Housing		Magazine and feed
49	Magazine Release Arm		Magazine and feed
50	Magazine Release Arm Pin	Ø2x8	Magazine and feed
51	Magazine Release Assembly Allen Screw (short)	M3x6	Magazine and feed
52	Magazine Release Assembly Allen Screw (long)	M3x12	Magazine and feed
53	Air Mag Index Assist Pin O-Ring	4.5x1.2 NBR90 + molybdenum disulphide	Magazine and feed
54	Air Mag Index Assist Pin	Ø2.5x11	Magazine and feed
55	Brass Insert Screw O-Ring	4.5x1 NBR80	Magazine and feed
56	Brass Insert Screw for Air Assist Magazine		Magazine and feed
57	Magazine Plastic Side Cover (opposite gauge side)		Magazine and feed
58	Magazine Plastic Side Cover Allen Screw	M3x6	Magazine and feed
59	Plastic Breech to Magazine Seal		Magazine and feed
60	Breech Seal O-Ring	11x1.5 NBR90	Magazine and feed
61	Barrel (specify .22 or .25 caliber)	.22 or .25 calibre	Barrel and moderator
62	Barrel Retain Nut	M12x1.25	Barrel and moderator
63	Barrel Housing Base to Magazine Base Allen Screw	M3x14	Magazine and feed
64	Barrel Housing Base		Magazine and feed
65	Magazine Base		Magazine and feed
66	Magazine Stop Guide		Magazine and feed
67	Magazine Stop Guide Spring		Magazine and feed
68	Magazine Stop Guide Spring Pin	Ø1.5x18	Magazine and feed
69	Magazine Stop		Magazine and feed
70	Magazine Stop Retaining Pin	Ø1.5x10	Magazine and feed
71	Magazine Front Cover		Magazine and feed
72	Bearing of Magazine		Magazine and feed
73	Magazine	19 shots in .22, 17 in .25	Magazine and feed
74	Barrel Housing Allen Screw	M4x12	Barrel and moderator
75	Cylinder Tube O-Ring	29x3 NBR90	Regulator
76	Regulator Cylinder Tube Housing		Regulator
77	Regulator Top Stem Top Seal to Housing		Regulator
78	Regulator Top Stem O-Ring	6x1.5 NBR90	Regulator
79	Regulator Top Seat O-Ring	9x1 NBR90	Regulator
80	Regulator Seat and Stem Assembly		Regulator
81	Regulator Bottom Seat and Stem O-Ring	10x1.5 NBR90	Regulator
82	Regulator Metal Housing O-Ring	15.5x1.5 NBR90	Regulator
83	Regulator Metal Housing		Regulator
84	Regulator Plastic Seal of Bottom Stem		Regulator
85	Regulator Bottom Stem and Washer Guide		Regulator
86	Regulator Belleville Washer		Regulator
87	Regulator Nut Base of Belleville Washer Stack		Regulator
88	Regulator Adjustment Allen Set Screw		Regulator
89	High Pressure Tube Threaded Probe Insert Fill Cap		Air tube and filling
90	High Pressure End Cap Plastic Filler Disc		Air tube and filling
91	High Pressure End Cap Internal O-Ring	20x3 NBR80	Air tube and filling
92	High Pressure Tube Threaded End Cap w Fill Stop		Air tube and filling
93	Fill Stop Retain Pin	Ø1.5x14	Air tube and filling
94	High Pressure Fill Stop		Air tube and filling
95	High Pressure Fill Stop Spring	4x12x0.5	Air tube and filling
96	Cylinder Tube O-Ring	29x3 NBR90	Air tube and filling
97	High Pressure Titanium Tube		Air tube and filling
98	Regulated Pressure Tube		Air tube and filling
99	Cylinder Tube O-Ring	29x3 NBR90	Air tube and filling
100	Regulated Pressure Tube Housing with Connector		Air tube and filling
101	Regulated Pressure Housing Connector O-Ring	11x1.5 NBR90	Air tube and filling
102	Tube and Barrel Frame with Picatinny Rail		Barrel and moderator
103	Barrel to Shroud Plastic Bushing O-Ring (back)	14x1 NBR70	Barrel and moderator
104	Barrel to Shroud Plastic Bushing		Barrel and moderator
105	Barrel to Shroud Plastic Bushing O-Ring (front)	22x3 NBR70	Barrel and moderator
106	Shroud Baffle Spacer		Barrel and moderator
107	Shroud Baffle		Barrel and moderator
108	Shroud End Muzzle Cap		Barrel and moderator
109	Barrel Shroud		Barrel and moderator
110	Barrel Shroud Plastic Threaded Bushing		Barrel and moderator
111	Barrel Shroud Plastic Threaded Bushing O-Ring	18x3 NBR70	Barrel and moderator
112	Barrel Band		Barrel and moderator
113	Barrel Band Allen Screw	M4x10	Barrel and moderator
114	Stock Retain Pin Rubber Bushing		Stock
115	Trigger Adjust Allen Set Screw	M4x12	Trigger and safety
116	Trigger/Trigger Arm Housing		Trigger and safety
117	Trigger Arm Housing Pin (short)	Ø2x8	Trigger and safety
118	Trigger Arm Adjuster (front)		Trigger and safety
119	Trigger Arm Housing Pin (long)	Ø2.5x16	Trigger and safety
120	Trigger Spring		Trigger and safety
121	Trigger		Trigger and safety
122	Trigger Arm (threaded both ends)		Trigger and safety
123	Trigger Arm Adjuster (rear)		Trigger and safety
124	Tube and Barrel Frame Allen Screw	M4x28	Barrel and moderator
125	Dynamic Power Adjust Stem		Power adjustment
126	Dynamic Power Buffer for stock		Power adjustment
127	Dynamic Power Tube Housing		Power adjustment
128	Dynamic Power Wheel with Bearing and Detent Ball Stops		Power adjustment
129	Rubber Anti Vibration Receiver to Stock Buffer		Receiver
130	Barrel Housing to Receiver Allen Screw	M3x35	Receiver
131	Regulated Pressure Tube Housing to Receiver Tab		Receiver
132	Tab Screw	M4x8	Receiver
133	Stock Upper Cheek Rest		Stock
134	Trigger Arm Stepped Bolt		Trigger and safety
135	Stock		Stock
136	Stock Retaining Pin	Ø4x46	Stock
137	Dynamic Power Wheel Click Insert Disk		Power adjustment
138	Dynamic Power Wheel		Power adjustment
139	Dynamic Power Wheel Allen Screw	M4x10	Power adjustment
140	Stock Butt Plastic to Rubber Connector Plate		Stock
141	Stock Butt Plate - Metal		Stock
142	Stock Butt Plate Screw	M6x20	Stock
143	Stock Rubber Butt Pad		Stock