MAC 5K 9mm Roller-Delayed Pistol with SBT5K Brace, 5.8 in Barrel, 3-Lug & 1/2x28, HK Internal Upgrades, 2x 30-Rd Mags
This MAC 5K is a Turkish-made MP5K-pattern 9mm pistol built by Mertsav and imported by Military Armament Corporation in Knoxville, TN. It features a stamped-steel receiver with welded top mount lugs, a compact 5.8 inch barrel with both HK 3-lug and 1/2x28 threading, and a folding SBT5K pistol brace. Notably, it has been upgraded with HK ejector and extractor components and springs, plus an HK firing pin spring, and it comes with two factory 30-round steel magazines.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This example shows minimal evidence of prior use or handling.
What’s Included
- Original hard case
- MAC 5K Operation & Safety Manual
- Two 30-round MAC MP5-pattern steel magazines marked "9mmx19" with MAC crest
- A3 Industries 100-degree angled grip (installed)
The MAC 5K follows the HK MP5K pattern with a stamped-steel receiver and welded top mount lugs. It accepts MP5-style magazines and uses a roller-delayed blowback action. Controls include SEF-style selector markings (S/E/F), a manual safety, and dual magazine releases with both paddle-style and button actuation.
The 5.8 inch barrel provides a dual muzzle interface: an HK 3-lug for compatible devices and standard 1/2x28 threads with a thread protector. Sighting is handled by an adjustable diopter rear drum and a hooded front post. The polymer MP5K foregrip handguard is paired with an A3 Industries 100-degree angled grip that is installed.
This pistol is outfitted with a folding SBT5K pistol brace and a polymer pistol grip, maintaining the compact MP5K profile while aiding stability. The configuration is designed for fast handling with familiar MP5K ergonomics.
Key internal components have been upgraded with HK parts, including the HK ejector lever and spring, HK extractor and spring, and an HK firing pin spring. These installed components align the build with proven MP5K-pattern internals.
The receiver is marked with Military Armament Corp Knoxville, TN, "Made in TURKEY," the MAC crest, and "MAC 5K MERTSAV TURKEY." Capacity is 30+1, and the package includes two factory MAC steel magazines with correct "9mmx19" and crest markings, along with the original hard case and manual.