diff --git a/project/src/helpers/ProfileHelper.ts b/project/src/helpers/ProfileHelper.ts
index a05080c6..acacd0a9 100644
--- a/project/src/helpers/ProfileHelper.ts
+++ b/project/src/helpers/ProfileHelper.ts
@@ -557,4 +557,14 @@ export class ProfileHelper
         return pmcProfile.Info.Bans
             .some((ban) => ban.banType === BanType.RAGFAIR && currentTimestamp < ban.dateTime);
     }
+
+    /**
+     * Add an achievement to player profile
+     * @param pmcProfile Profile to add achievement to
+     * @param achievementId Id of achievement to add
+     */
+    public addAchievementToProfile(pmcProfile: IPmcData, achievementId: string): void
+    {
+        pmcProfile.Achievements[achievementId] = this.timeUtil.getTimestamp();
+    }
 }
diff --git a/project/src/helpers/QuestHelper.ts b/project/src/helpers/QuestHelper.ts
index 0ec46487..72911f40 100644
--- a/project/src/helpers/QuestHelper.ts
+++ b/project/src/helpers/QuestHelper.ts
@@ -956,8 +956,7 @@ export class QuestHelper
                     // Handled elsewhere, TODO: find and say here
                     break;
                 case QuestRewardType.ACHIEVEMENT:
-                    this.logger.warning(`TODO - achievement: ${reward.target} reward for quest completion not implemented yet`);
-                    // TODO - Implement (rewards for completion of Gunsmith P25)
+                    this.profileHelper.addAchievementToProfile(pmcProfile, reward.target);
                     break;
                 case QuestRewardType.STASH_ROWS:
                     this.profileHelper.addStashRowsBonusToProfile(sessionId, Number.parseInt(<string>reward.value)); // add specified stash rows from quest reward - requires client restart