Mossberg Model 990 AfterShock 12 Gauge Gas-Operated Semi-Auto, 14.75 in Barrel, 5+1 Capacity, Matte Blue
The Mossberg Model 990 AfterShock is a recent U.S.-made, gas-operated 12 gauge built around a compact 14.75 in cylinder-bore barrel and a 5+1 capacity. It pairs a matte blue steel receiver and barrel with practical controls, including an oversized, knurled charging handle and an oversized bolt-release paddle. The drilled-and-tapped receiver, M-LOK mounting at the magazine-tube extension block, and synthetic furniture with a birdshead grip make this specific configuration stand out for streamlined handling and setup.
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.
Specific Condition Notes: This firearm is in solid functional shape. Surface scratches and blemishes are present.
What’s Included
- Original box
This Model 990 AfterShock uses a gas-operated action and chambers both 2 3/4 and 3 in 12 gauge shells. The plain, no-rib barrel is cut to 14.75 in with a true cylinder bore, and the shotgun feeds from a 5+1 magazine. Right-side ejection and a tang safety round out the core operating features.
Controls are optimized for fast, confident manipulation: an oversized, knurled charging handle; an oversized bolt-release paddle; an enlarged, beveled loading port; an elongated elevator; and an anodized follower. The synthetic forend includes a retention strap, and the knurled magazine cap aids tool-free handling.
The birdshead AfterShock grip with a rubberized palm insert promotes a compact profile and secure purchase. Up front, a red fiber-optic bead provides a bright aiming reference; there is no rear sight. The receiver is drilled and tapped with three screw holes, and an M-LOK interface is located at the magazine-tube extension block for accessory mounting. Overall length is approximately 27.125 in, and the weight is about 6.0 lb.
Durability-focused materials and finishes include nickel-boron coating on the gas piston, magazine tube, hammer, and sear, plus uniform matte dark metalwork with black synthetic furniture and a Mossberg medallion on the birdshead grip. The steel receiver and barrel wear a matte blue finish. This configuration is cataloged under Mfg. Part No. 83001, carries an MSRP of $1,120, and is made in the USA.