Ruger Mini-14 181-Series .223 Rem Semi-Auto Rifle, Stainless, 18.5 in Pencil Barrel (1979)
This 181-Series Ruger Mini-14 is a 1979 production rifle and an early stainless variant from the first year Ruger cataloged stainless Mini-14s. It features the slim 18.5-inch pencil barrel and stainless receiver, paired with a walnut-finished hardwood stock and black ventilated polymer/fiberglass handguard. A clean, mirror-bright bore and two installed upgrades—a dual-rod barrel strut and a clamp-on slotted muzzle device with integrated front sight—set this example apart.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor scratches and small blemishes are present on exterior surfaces. The charging handle shows light pitting.
What’s Included
- Dual-rod barrel strut/stabilizer with clamp blocks (installed)
- Clamp-on slotted muzzle device with integrated front sight (installed)
- 1x 5-round detachable steel Mini-14 magazine
Designated as a 181-Series Mini-14, this rifle dates to 1979, aligning with the first year Ruger offered the model in stainless. It follows the Mini lineage with a fixed-piston, gas-operated system and rotating bolt, a pattern derived from the M1/M14 family. Receiver markings include "RUGER MINI-14 CAL..223" and "STURM, RUGER & CO., INC., SOUTHPORT, CONN. U.S.A."
The rifle retains the classic pencil-profile 18.5-inch stainless barrel and a stainless receiver, matched to a walnut-finished hardwood stock. A black ventilated polymer/fiberglass upper handguard completes the period-correct look while aiding heat dissipation. Length of pull measures 12.5 inches.
Sighting is straightforward and durable, with a receiver-mounted aperture rear sight with protective wings. The current configuration includes a clamp-on slotted muzzle device that incorporates the front sight, aligning with the Mini-14’s practical iron-sight setup.
Controls include a right-side charging handle and a trigger-guard safety. Capacity is 5+1, and this rifle ships with one detachable 5-round steel magazine. Manufactured in the United States, it represents a notable early stainless example of the Mini-14 platform.