The Mission Model Sub 1 crossbow is renowned for its remarkable accuracy when aiming at targets and its quieter operation compared to other similar crossbows. 

Notably, it incorporates a modified trigger system designed to allow the safe decocking of the crossbow after use.

Despite its positive attributes, there are a few common issues that users may encounter when using Mission Sub 1 crossbow. These issues encompass challenges like 

  • inconsistent cocking (pulling back the string), 
  • instances where the crossbow fails to shoot as intended, 
  • problems with a sensor
  • difficulties in safely releasing the crossbow’s tension, 
  • a sense of stiffness in its overall operation, and 
  • a relatively delayed trigger response.

Interesting fact about mission sub 1

The Mission Model Sub 1 crossbow introduced a unique feature that allows for safe decocking without the need to pull the trigger or shoot a bolt. Traditionally, when decocking a crossbow, users would have to fire a bolt into a target or use a discharge head to release the tension on the bowstring. However, the Mission Sub 1 crossbow revolutionized this process by incorporating a modified trigger system that enables safe decocking without the need for additional equipment or potentially damaging the crossbow. This innovative feature provides added convenience, ease of use, and safety for users.

Mission sub1 problem and solution

Mission Sub-1 Crossbow Solutions at a Glance

Short draw length limits energy and arrow speedUse heavier arrows to compensate for reduced energy, enhancing arrow performance.
Lightweight and composite limbs may contribute to instability while shootingAttach dampening accessories. Add stabilizers or counterbalances to improve balance and reduce recoil effects.
Crossbow may not engage or catch during cockingSend for servicing or replace return spring of the latch.
Crossbow fails to shoot due to improper bolt placement.Ensure correct bolt placement or seek professional assistance
Sensor malfunction affects arrow accuracyReplace faulty sensor for accurate shooting
Difficulty in cocking and decocking.Follow proper decocking instructions carefully
Crossbow becomes stiff due to lack of maintenanceRegularly clean and maintain the crossbow
Trigger response is slow or sluggishAvoid over-lubricating trigger assembly, seek professional inspection.

Lightweight and Composite Limbs

The use of lightweight and composite limbs in crossbows introduces instability due to their reduced mass, which leads to amplified recoil forces, limited dampening properties, and inadequate stabilization, resulting in less control during shooting.


Improve crossbow shooting stability with dampening accessories, balance enhancements, and secure connections. Refine shooting technique for accuracy and gain expertise through practice. Upgrade to specialized dampening systems and seek professional guidance if issues persist.

Short draw length

The Mission Sub-1 crossbow’s compact design can result in a shorter draw length, affecting arrow energy and speed. This may lead to reduced kinetic energy transfer upon release and impact arrow performance and accuracy, especially at longer distances.


To address this, optimizing draw length based on your physique and shooting style is key. Customizing the draw length improves energy transfer and arrow speed. Using slightly heavier arrows and precision tuning the setup further enhance performance, compensating for the shorter draw length and ensuring accurate and consistent shooting with the Mission Sub-1 crossbow.

Mission Sub 1 Cocking Problem

When attempting to cock the Mission Sub 1 crossbow, you might encounter a situation where the mechanism fails to engage properly. Consequently, the bowstring may not catch as expected, leading to an incomplete cocking process.


As a temporary solution, gently easing the string back may help rectify the issue. Another approach involves activating the safety mechanism before pulling back the string, which can lead to successful cocking. This malfunction occurs due to the crossbow’s failure to return to the fire position after a shot has been taken.

It’s worth noting that this inconsistency is a common factory-related problem found in a number of Mission Sub 1 crossbows.

Mission Sub 1 Firing Problem

At times, the Mission Sub 1 crossbow might encounter a non-firing scenario, primarily attributed to a partial bolt rotation. This problem emerges when the bolt isn’t properly positioned, preventing a connection with the string and potentially disengaging the Anti-Dry-Fire (ADF) system.


It’s crucial to ensure the bolt is correctly aligned with the string to restore firing functionality. However, due to the intricate nature of this task, seeking assistance from a skilled professional with the necessary tools and expertise is advisable for a successful resolution.

Mission Sub 1 Sensor Issue

When the sensor of the Mission Sub 1 crossbow malfunctions, it affects your shooting accuracy. This issue can disrupt airflow direction, distance measurement, and vertical alignment, leading to inaccurate shots.


If the sensor is damaged or faulty, replacement is necessary. Reach out to Mission Crossbows to obtain a replacement sensor for your crossbow, ensuring accurate and reliable shooting performance.

Mission Sub 1 Decocking Problem

The Mission Sub 1 crossbow can encounter challenges with decocking, especially for beginners. Mastering the correct decocking technique is crucial.

Here’s how to do it:

  • Safety First: Ensure the safety notch is engaged, and remove the arrow from the crossbow.
  • Vertical Placement: Place the crossbow vertically on the ground.
  • Hook Adjustment: Use the cocking rope to position the hooks at the center. Keep the orange handle on the right side and attach both hooks to the bow.
  • Decocking Button: Press the decocking button and pull the rope.
  • Completion: The Mission Sub 1 crossbow is now safely decocked. Remove the cocking rope.

By following these steps, you can effectively decock your Mission Sub 1 crossbow and maintain safe and proper handling.

Stiff Operation

The Mission Sub 1 crossbow’s operation can become stiff without proper maintenance. To ensure smooth performance:

  • Regular Cleaning: Clean the trigger and ADF system after each use to prevent buildup.
  • Lubrication: Apply gun oil to external parts for protection. Avoid lubricating the trigger system to prevent dirt accumulation.
  • Rail Lubrication: Follow the company’s recommendation and lubricate the rail every 5 to 10 shots for optimal performance.

By incorporating these maintenance steps, you’ll keep your Mission Sub 1 crossbow operating smoothly and efficiently.

Mission Sub1 Quick Review

Here’s a concise summary of the important information from the article about the SUB-1™ crossbow by Mission Crossbows:

Introduction to SUB-1 Crossbow

  • The SUB-1 crossbow is designed to be highly accurate, quiet, and easy to use.
  • It consistently delivers groups less than 1″ at 100 yards.
  • It has an innovative trigger system for safe de-cocking with a button push.


  • Speed: Up to 385FPS
  • Physical Weight: 7.5 lbs
  • Trigger Pull: 3.4 lbs
  • Powerstroke: 13.75″
  • Width (axle-to-axle): 10.7″ cocked, 13.8″ uncocked
  • Patents Pending: 24

Tech Features:

  • Benchmark™ Fire Control with match grade trigger.
  • Easy-load Arrow Retention Arm for smooth loading.
  • De-cocking Button for safe de-cocking without shooting a bolt.
  • Tech Controlled Acceleration with Sync X™ Cam for uniform arrow launch.
  • Patented Flight Deck eliminates vertical nock travel.
  • Precision Stock with adjustable length of pull and comb.
  • Pistol Grip with positive contour.

Quality and Craftsmanship:

  • Made in the USA with a focus on quality and craftsmanship.

RSD™ System:

  • Removable Silent Draw (RSD™) System is a silent mechanical cocking device.
  • Enhances accuracy and reduces effort required to cock the crossbow.
Mission sub 1 problems

Frequently asked questions

What is the trigger type of the Mission Sub 1 crossbow?

The Mission Sub 1 crossbow features a dual-stage trigger with a fully contained rolling sear. This trigger design contributes to consistent and controlled shooting.

What is the purpose of the Sync X Cam in the Mission Sub 1 crossbow?

The Sync X Cam is a high let-off cam system in the Mission Sub 1 crossbow. Its primary function is to eliminate horizontal nock travel, ensuring a uniform arrow launch and enhancing accuracy.

Can the Mission Sub 1 crossbow eliminate vertical nock travel?

Yes, the Mission Sub 1 crossbow is equipped with a patented Flight Deck that eliminates vertical nock travel. This feature is crucial for maintaining accuracy and consistent arrow flight.

How many lengths of pull adjustments does the Mission Sub 1 crossbow have?

The Mission Sub 1 crossbow offers a total of six different lengths of pull adjustments. This

feature allows users to adapt the crossbow’s stock to their preferred shooting position and comfort.

How much adjustment is available in the comb of the Mission Sub 1 crossbow?

The comb of the Mission Sub 1 crossbow provides an adjustment of 1.25 inches. This allows users to optimize the comb height for a personalized fit and improved shooting experience.

What type of grip does the Mission Sub 1 crossbow have?

The Mission Sub 1 crossbow is equipped with a pistol grip. This grip is designed to provide a positive and comfortable hold on the crossbow. Additionally, the pistol grip can be customized, allowing users to convert it into an assault rifle-type grip for added versatility.

What is the purpose of the RSD system in the Mission Sub 1 crossbow?

The RSD (Removable Silent Draw) System is a unique feature of the Mission Sub 1 crossbow. It serves multiple purposes:

Enhancing Accuracy: The RSD system applies equal tension to each side of the bowstring during draw, resulting in improved accuracy.

Easier Cocking: The ambidextrous reel reduces effort required to cock the crossbow, making the cocking process more manageable.

Silent Cocking: The RSD system operates silently, ensuring a quiet and stealthy cocking procedure.

Quick Installation: The RSD system can be easily installed or removed in a matter of seconds, providing convenience and flexibility to users.