Escape from Tarkov Gunsmith Part 21 Guide – Full Build & Rewards

In Escape from Tarkov, Gunsmith Part 21 is one of the more complex and demanding quests issued by Mechanic. This task involves modifying not just one, but two weapons—the Remington Model 700 and the Colt M1911—to meet highly specific standards. In this guide, we’ll break down every requirement for both weapons, present full builds, and highlight the rewards you’ll get upon completion.

This guide ensures you complete gunsmith part 21 smoothly, using the correct parts and avoiding wasted time or Rubles.

Gunsmith Part 21 Objectives Overview

To begin Gunsmith Part 21, you must be level 38. This task requires you to submit two firearms with distinct build specs:

• Remington Model 700 (M700): Built for precision, lightweight, and recoil control.
• Colt M1911: Must feature specific tactical upgrades and a sighting range enhancement.

Each firearm has to meet certain thresholds for durability, ergonomics, recoil, and more. Let’s dive into the exact builds.

M700 and M1911 Builds for Gunsmith Part

M700 Build

Part	Trader	Trader Level
AB Arms MOD*X GEN 3 Chassis	Mechanic	4
AB Arms MOD*X GEN 3 KeyMod Handguard	Mechanic	4
AB Arms MOD*X Rail Mount	Mechanic	4
AR-15 Magpul MIAD Pistol Grip (FDE)	Peacekeeper	3
AR-15 Colt Carbine Buffer Tube	Peacekeeper	2
AR-15 KRISS Defiance DS150 Stock	Peacekeeper	3
AR-10 Daniel Defense WAVE 7.62x51 Muzzle Brake	Mechanic	4
Daniel Defense WAVE QD Suppressor	Mechanic	4
Recknagel Era-Tac 34mm Ring Mount	Mechanic	4
Schmidt & Bender PM II 5-25x56 Scope	Mechanic	4
5-round M700 Magazine or No Mag	Jaeger	2

Colt M1911 Build

Part	Trader	Trader Level
Pachmayr American Legend Grip #423	Mechanic	3
Anarchy Outdoors .45 ACP Muzzle Brake	Mechanic	3
NcSTAR Tactical Blue Laser	Skier	2
NcSTAR M1911A1 Trigger Guard Mount	Skier	2
Standard M1911 Magazine	Peacekeeper	2

Gunsmith Part 21 Completion Rewards

Once you turn in both weapons successfully built to the correct specifications, you’ll be rewarded with:

• 27,700 EXP
• +0.03 Mechanic Rep
• 1× Pistol Case
• 3× 7.62x51mm M993 Ammo Packs (20 rounds each)
• Unlocks for purchase:
  • AR-15 HK Ergo PSG-1 Style Pistol Grip at Mechanic LL4
  • AR-15 Strike Industries Advanced Receiver Extension Buffer Tube (Black) at Mechanic LL4

These rewards not only enhance your gear options but also help you gain access to even more powerful builds as you progress in the game.

Mastering Gunsmith Part 21

Tackling gunsmith part 21 is a true test of your weapon modding knowledge in Escape from Tarkov. Between sourcing the correct parts and meeting tight build specs, this task can be time-consuming—but also deeply rewarding. Finishing it not only brings solid rewards but also improves your overall understanding of firearm customization and trader progression. Stay organized, double-check your builds, and you’ll move one step closer to completing the full Gunsmith series.