Gunsmith Part 4 is another quest that is given by the Mechanic that requires players to modify a gun to certain specifications. The modification itself can be done in lots of different ways, and in this guide, we will show one of the recommended and easiest ways to complete this task.
Requirements for Gunsmith Part 4
- At least level 15
- Completed Gunsmith Part 3
Objectives for Gunsmith Part 4
- Modify an M4A1 to comply with the given specifications.
- Silencer
- 60-round extended mag
- 47 or above ergonomics
- 300 or less recoil
- 3.8 kg or less in weight
- 800 or beyond sighting range
- 60 Durability
Rewards for Gunsmith Part 4
- +7,000 EXP
- Mechanic rep +0.03
- 800 Euros
- 1x Physical bitcoin
Build for Gunsmith Part 4
Reaching the target specifications can be done in different ways. In building this build, it’s good to start with the specs that are more part specific such as the sighting range, mag capacity, and the silencer requirement.
The ergonomics, recoil, and weight can be worked around through several different attachments, while making sure that the parts are in good condition will take care of the durability requirement.
- () can be bartered with NPCs
- * can be looted from raids.
Scopes
- Primary Arms Compact Prism Scope 2.5x (Skier LL2)*
- Trijicon ACOG 3.5×35 Scope (Peacekeeper LL3)
Magazines
- 5.56×45 Surefire MAG5-60 STANAG 60-round magazine (Peacekeeper LL3)*
- 5.56×45 Magpul PMAG D-60 60-round magazine (Peacekeeper LL3)*
Suppressors
- Surefire SOCOM556-RC2 5.56×45 sound suppressor*
- Surefire SOCOM556-MINI MONSTER 5.56×45 sound suppressor (Mechanic LL3)*
Handguard
- AR-15 SAI 14.5 inch QD Rail handguard (Skier LL4)*
- AR-15 Aeroknox AX-15 10.5 inch M-LOK handguard (Mechanic LL3)
Foregrips
- KAC vertical foregrip (Peacekeeper LL1)*
- Fortis Shift tactical grip (Peacekeeper LL4)*
- Strike Industries Cobra Tactical foregrip (Mechanic LL3)*
Pistolgrips
- Hogue Overmolded Rubber Grip (Peacekeeper LL3)
- AR-15 Stark AR Rifle grip (Peacekeeper LL4)
Mount
- Magpul M-LOK 4.1 inch rail (Mechanic LL2)
Charging Handle
- AR-15 Radian Weapons Raptor charging handle (Mechanic LL3)*
- AR-15 Avalanche MOD2 charging handle (Peacekeeper LL4)*
Stocks
- KRISS Defiance DS150 stock (Peeacekeeper LL2)
- TROY M7A1 PDW stock (Mechanic LL2)
Barrel
- AR-15 5.56×45 260mm barrel (Peacekeeper LL3)
Gas Block
- MK12 Low Profile Gas Block (Mechanic LL1)
Flash Hiders/Muzzle Breaks
- AR-15 Surefire WarComp 5.56×45 Flash hider (Skier LL2)*
- AR-15 Surefire SF3P 5.56×45 Flash hider (Mechanic LL2)*
- AR-15 SureFire FH556RC 5.56×45 flash hider*
Build Tip
You can barter for the M4A1 SAI variant from the Mechanic (LL2) to get as close to the specs, then just modify as needed.
Most of the attachments can be bartered from the NPCs, however some of them is locked behind a loyalty level. If you find that you’re lacking the required loyalty levels, you can check out the flea market if you have enough Roubles to spare, or go on raids and make sure to loot as much as possible.
Make sure to work with the attachments that satisfy the requirements right away, then your way through the more negotiable requirements like the ergonomics and the weight. Also, take note of the compatibilities.
You’re going to turn in the gun to the Mechanic, so make sure to remove any bullets or attachments that don’t contribute to the requirements, especially if you bought a pre-built variant.
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Check out this video by Airwingmarine for more options on how to build the gun for this quest:
