Pioneer Arms Sporter Underfolder AKM in 5.56x45 NATO, 16.5 in Threaded Barrel, Polish-Made Stamped Receiver
This Pioneer Arms Sporter Underfolder is a Polish-made AKM-platform rifle chambered in 5.56x45 NATO, a relatively uncommon pairing for an AK underfolder. Built on a stamped, riveted receiver with classic wood handguards and a steel underfolding stock, it features a threaded 16.5 in barrel with a multi-port brake and clear Polish Radom factory markings.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor surface scratches and small finish blemishes are present. The brown polymer pistol grip shows visible blemishing.
What's Included
- Pioneer Arms Sporter Underfolder 5.56x45 NATO rifle
- 1 ProMag polymer 30-round AK-pattern magazine
Chambered in 5.56x45 NATO, this Sporter Underfolder pairs a classic AK layout with a less common caliber for this configuration. It uses a detachable AK-pattern magazine interface and is specified for a 30+1 capacity.
The rifle is built on a stamped, riveted AK-pattern receiver with a ribbed dust cover. It wears a Polish-pattern steel underfolding stock with a left-side hinge/lock and a rear sling loop. Length of pull is 13.0 in.
The 16.5 in barrel is threaded and fitted with a multi-port brake. It runs a semi-automatic, long-stroke gas piston system with a rotating bolt and a separate 90° gas block. Sights are traditional AK iron sights, with a protected front post and a tangent rear leaf.
Furniture includes wood upper and lower handguards and a brown polymer Bakelite-style pistol grip. The overall setup maintains classic AK ergonomics with durable, proven components.
Manufactured in Radom, Poland, this rifle bears clear factory and import markings. Right receiver: "SPORTER 5.56 x 45 PIONEER ARMS CORP. RADOM, POLAND." Crest on rear sight block/right trunnion: Radom "11" Poland emblem. Left receiver import mark: "PIONEER ARMS CORP., PORT ORANGE, FL."