Chinese Type 77-1 Stick Grenade

1. Overview

The Type 77-1 is a Chinese fragmentation stick grenade that represents the final evolution of the People’s Republic of China’s long lineage of stick-type hand grenades descended from the German Stielhandgranate design. Introduced in the late 1970s as an improvement over the widely produced Type 67, the Type 77-1 features a cast iron fragmentation head and a plastic handle, modernizing a design concept that had been in Chinese service since the Second Sino-Japanese War. It remains a recognizable and operationally relevant grenade in multiple conflict zones worldwide.

⚠ SAFETY WARNING: All ordnance should be considered dangerous until rendered safe by qualified EOD personnel. Unexploded ordnance should never be handled by untrained individuals. Report all suspected ordnance to military or law enforcement authorities. This information is for educational and identification training purposes only.

2. Country/Bloc of Origin

  • Country: People’s Republic of China
  • Period of Development: Late 1970s (standardized 1977)
  • Manufacturing: Produced in multiple Chinese state arsenals
  • International Proliferation: Widely exported and encountered in conflict zones throughout Asia, Africa, and the Middle East. Also known to have been used by criminal elements in Hong Kong during the 1990s.

3. Ordnance Class

  • Type: Hand grenade (stick type)
  • Primary Role: Anti-personnel, fragmentation
  • Delivery Method: Hand-thrown

4. Ordnance Family / Nomenclature

  • Official Designation: Type 77-1 (77-1式木柄手榴弹)
  • Common Names: Type 77-1 Stick Grenade, Chinese Stick Grenade
  • Related Variants in Family:
    • Type 67 Stick Grenade (predecessor, sheet steel body with wooden handle)
    • Type 67 Improved (intermediate variant)
    • Type 77 (initial variant, the 77-1 being the improved version)
    • Type 82 Grenade (successor, transitioning to an egg-shaped design)
  • Historical Lineage: Traces directly from the German Model 24 Stielhandgranate through Chinese copies (Type 51, Type 56, Type 67) to the final stick-type evolution in the Type 77-1.

5. Hazards

  • Primary Hazard: Fragmentation from the cast iron body
  • Explosive Fill: 70 grams of TNT
  • Lethal Radius: Approximately 7 meters
  • Fuze Delay: 2.8 to 4 seconds
  • Sensitivity Concerns:
    • The pull-friction fuze can be initiated by a sharp, deliberate pull of the friction cord — accidental initiation is possible if the cord snags on equipment or vegetation
    • The relatively short minimum delay time (2.8 seconds) provides limited time to throw after initiation
  • UXO Considerations:
    • Type 77-1 grenades are encountered as UXO in numerous conflict zones across Asia, Africa, and the Middle East
    • The cast iron body can survive burial and exposure for extended periods
    • The pull-friction fuze mechanism may remain sensitive in UXO condition — the grenade may still function if the friction cord is disturbed
    • Chinese grenades of this era are known for variable quality control, increasing the unpredictability of UXO specimens
  • Environmental Degradation: The wooden or plastic handle may deteriorate, but the cast iron head and explosive fill can remain dangerous for decades. TNT is relatively stable but can exude or weep in hot climates.

6. Key Identification Features

  • Shape: Cylindrical or slightly rounded fragmentation head mounted on a stick handle — classic “stick grenade” profile
  • Body Material: Cast iron head (fragmentation body)
  • Handle Material: Plastic (distinguishing the Type 77-1 from the wooden-handled Type 67)
  • Fuze Cover: Sheet metal or plastic cap at the base of the handle covering the friction cord and pull ring
  • Overall Length: Approximately 200 mm (8 in)
  • Weight: Approximately 360 grams
  • Color: Typically dark green or olive drab body; the handle may be black or dark-colored plastic
  • Markings: Chinese characters indicating model designation, lot number, and manufacturing arsenal may be stamped or painted on the body
  • Distinctive Features:
    • The plastic handle is a key identifier distinguishing the Type 77-1 from the wooden-handled Type 67
    • The cast iron fragmentation head has a more refined appearance than the sheet-steel head of the Type 67
    • The fuze cover cap at the base of the handle

7. Fuzing Mechanisms

  • Fuze Type: Pull-friction delay
  • Arming Sequence:
    1. Unscrew or remove the protective cap at the base of the handle to expose the pull cord and ring
    2. Grip the grenade by the head (or handle, depending on throwing technique)
    3. Pull the friction cord sharply to ignite the delay element
    4. Throw the grenade
  • Delay Time: 2.8 to 4 seconds
  • Detonation: The friction igniter lights a pyrotechnic delay column, which burns through to a detonator that initiates the TNT main charge
  • Safety Mechanisms:
    • Protective cap over the pull cord at the base of the handle
    • The friction cord requires a deliberate, sharp pull to initiate
  • Self-Destruct/Self-Neutralization: None
  • Anti-Handling Features: None standard, though improvised booby-trap configurations are possible

8. History of Development and Use

The Type 77-1 is the product of a long Chinese tradition of stick grenade design stretching back to the Second Sino-Japanese War (1937–1945). During that conflict, the Chinese National Revolutionary Army adopted and mass-produced grenades based on the German Model 24 Stielhandgranate. After the establishment of the People’s Republic of China, the People’s Liberation Army (PLA) standardized the Type 67 as its primary stick grenade, itself a refined descendant of earlier Chinese copies.

By the mid-1970s, the PLA sought to modernize its infantry grenade inventory. The Type 77 and its improved variant, the Type 77-1, represented the final generation of Chinese stick grenades. Key improvements over the Type 67 included the use of a cast iron fragmentation body (providing more effective fragmentation than the Type 67’s sheet steel) and a plastic handle (reducing manufacturing complexity and improving weather resistance compared to wood).

The Type 77-1 was widely issued to PLA infantry units and was also extensively exported. During the 1990s, Type 67 and Type 77 grenades were notably used by armed criminals in Hong Kong who obtained them from mainland China.

The PLA eventually transitioned to more modern designs such as the Type 82 series (egg-shaped grenades with striker-release fuzes) and later the Type 86 series, phasing out stick grenades from front-line service. However, the Type 77-1 remains in reserve stocks and continues to appear in conflict zones worldwide.

9. Technical Specifications

ParameterValue
Overall Length~200 mm (8 in)
Head Diameter~48 mm
Total Weight~360 g
Body MaterialCast iron (head), plastic (handle)
Explosive FillTNT, 70 g
Fuze TypePull-friction delay
Fuze Delay2.8–4 seconds
Lethal Radius~7 m
Throwing Range~30–40 m (average soldier)

10. Frequently Asked Questions

Q: What distinguishes the Type 77-1 from the earlier Type 67 stick grenade? A: The primary differences are material and construction. The Type 77-1 features a cast iron fragmentation head (versus the Type 67’s sheet steel body) and a plastic handle (versus the Type 67’s wooden handle). These changes improved both the fragmentation effectiveness and the manufacturing efficiency/durability of the grenade.

Q: Why did China persist with stick grenade designs for so long when most other nations had abandoned them? A: Chinese stick grenade production was deeply rooted in manufacturing infrastructure established during the Second Sino-Japanese War. The simple friction-fuze and stick-handle design could be mass-produced with relatively basic industrial capability — an important consideration for the PLA, which needed to equip enormous numbers of infantry. Additionally, Chinese military doctrine traditionally favored grenade-heavy infantry tactics, and the stick design offered superior throwing range compared to egg-shaped grenades.

Q: How does the pull-friction fuze differ from the striker-release fuze used in Western grenades? A: A pull-friction fuze requires the user to actively pull a friction cord to ignite the delay element, similar to striking a match. A striker-release fuze (used in grenades like the US M67) uses a spring-loaded striker held in place by a safety lever; when the lever is released after throwing, the striker automatically initiates the primer. The pull-friction system requires a deliberate separate action to arm the grenade, while the striker-release system arms automatically upon throwing.

Q: What is the UXO risk associated with the Type 77-1? A: The Type 77-1 presents a significant UXO risk in areas where Chinese-manufactured weapons have been used or stockpiled. The TNT fill is relatively stable over long periods, and the cast iron body resists corrosion reasonably well. The pull-friction fuze mechanism, while requiring a deliberate pull to initiate, may become sensitized in a deteriorated state. Any encountered Type 77-1 grenade should be treated as extremely dangerous regardless of apparent condition.

Q: Was the Type 77-1 used in any major conflicts? A: While the Type 77-1 was not the primary grenade in any single major conflict, it has been widely exported and encountered in numerous conflicts across Asia, Africa, and the Middle East due to China’s extensive arms export programs during the Cold War and post-Cold War periods. It has appeared in various insurgencies and civil conflicts worldwide.

Q: Can multiple Type 77-1 grenade heads be bundled together like the German M24? A: While the Type 77-1 was not specifically designed for bundling in the manner of the German Geballte Ladung (concentrated charge), Chinese soldiers have historically employed bundling techniques with stick grenades, including the Type 67. The practice of tying grenades to bamboo poles or bundling them together for use against fortifications and vehicles was a documented Chinese infantry tactic carried over from earlier conflicts.

Q: How does the Type 77-1 compare to the Soviet F1 grenade? A: The Type 77-1 and Soviet F1 represent fundamentally different design philosophies. The F1 is a heavy (600 g), egg-shaped defensive fragmentation grenade with a large effective casualty radius (20–30 meters) and a striker-release fuze. The Type 77-1 is lighter (360 g), uses a stick configuration for greater throwing range, has a smaller lethal radius (7 meters), and employs a pull-friction fuze. The F1 is primarily a defensive grenade requiring cover after throwing, while the Type 77-1’s lower fragmentation output and greater throwing range make it more suitable for offensive use.

Q: What replaced the Type 77-1 in PLA service? A: The PLA transitioned to the Type 82 series of egg-shaped hand grenades, which used a more modern striker-release fuze mechanism and a compact design that was easier to carry in standard equipment pouches. The Type 82 was itself followed by the Type 86 and more modern designs incorporating pre-formed fragmentation and improved safety features.