Krebs Customs Yugo M-90A Underfolder AK 5.56×45 18.25” Semi-Automatic Rifle
SOLD FOR: $1,676.00
LSB#: LSB250811DM007
Make: Krebs Custom, DC Industries Inc.
Model: M90A, NDS-Y556 receiver
Serial Number: Y2185
Year of Manufacture: Modern
Caliber: 5.56×45
Action Type: Semi-Automatic, Gas Operated, Long Stroke Piston
Markings: The trunnion is marked 1997 / M90A 10700”. The left side of the receiver is marked with the Krebs Customs logo. The bottom of the receiver is marked “MOD: NDS-Y556 / CAL: 5.56X45 / DC Industries Inc. / St. Paul MN. USA / SN: Y2185”. The right side of the dust cover is marked “10700”. The bolt is marked “10700”. The right side of the barrel is marked “5.56 1/7”.
Barrel Length: 18.25” Heavy Barrel
Sights / Optics: The front sight is an adjustable post set between to protective ears. The rear sight is a u-notch elevation sight. The rear sight has flip up tritium night sights.
Stock Configuration & Condition: The buttstock is an underfolder. The installed pistol grip is a brown checkered synthetic. The uninstalled pistol grip is a serrated black synthetic. The forend is a two piece wood with vents. The barrel has an AR bayonet lug. The gas system has an adjustable gas block. The LOP measures 13” from the front of the trigger to the back of the buttstock. There is little to no wear. There are a couple of compression marks and scratches on the forend. The checkering is sharp. The stock rates in about Excellent condition.
Magazine Quantity & Condition: 4x 30rd 5.56×45 magazines in about Excellent condition.
Type of Finish: Black
Finish Originality: Original
Bore Condition: The bore is bright and the rifling is sharp. There is no erosion in the bore. In this writer’s opinion the bore rates 10 out of 10.
Overall Condition: This rifle retains about 99% of its metal finish. The balance of the finish shows light operation. There are a few very light scratches on the dust cover. . The screw heads are sharp and serviceable and the pins are unmarred. The markings are clear. This rifle rates in about Excellent condition.
Mechanics: The action functions correctly. We did not fire this rifle. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.
Box, Paperwork & Accessories: This rifle comes with a total of four magazines, extra pistol grip, Tapco trigger, and foam inserted hard case.
Our Assessment: This Krebs Customs Yugo M-90A represents an exceptional, modernized take on one of the most desirable Yugoslav AK variants—here configured on a DC Industries NDS-Y556 receiver and built around a factory 1997-dated M90A parts set. Chambered in 5.56×45, the rifle delivers Western ammunition compatibility while retaining the heavy, overbuilt character that made Yugoslav rifles stand apart from their Eastern-bloc peers. Features such as the 18.25″ heavy barrel, AR-pattern bayonet lug, underfolding stock, vented Yugo handguards, and Krebs’s parts selection and tuning raise this build well into the upper tier of semi-automatic AK rifles.
Well known throughout the AK community, Krebs Custom has long been regarded as one of the premier American builders of Kalashnikov-pattern rifles. Their work is consistently recognized for exceptional assembly, refined fitment, tuned gas systems, and reliable function—attributes that have made Krebs one of the most respected names in the platform for more than two decades. Collectors and shooters alike value Krebs rifles for their precise workmanship, attention to mechanical detail, and the measurable performance improvements they bring to the traditional AK design.
Condition on this example is outstanding, with approximately 99% of the finish remaining, clean and sharp markings, and only faint handling marks. The bore is pristine, mirror-bright, and sharply rifled—rated 10/10 by this writer. The rifle includes four 30-round magazines, an extra pistol grip, and a fitted hard case, further enhancing completeness and desirability. For anyone seeking a top-tier AKM-pattern rifle—one blending Serbian/Yugo durability with American custom-shop refinement—this Krebs-built M90A stands as an exceptional opportunity. We are no longer offering layaway. Please see our photos and good luck with your bid! -N.P
