Veterans Day gun deals are live, some through Nov 15. See the deals
Bear Creek Arsenalar-15Value Tier

Bear Creek Arsenal Bear Pump (.400 Legend, 18")

Bear Creek Arsenal's first pump-action AR-15, launched November 5, 2026, in .400 Legend. A sliding forend cycles the bolt by hand instead of gas, on a standard AR-15 lower with an 18-inch 1:16 barrel, 15-inch M-LOK rail, full-length top rail, and a muzzle brake.

Price
$545
Weight
7 lb 11.2 oz
Calibers
.400 Legend
Rail
mlok

Featured in

Key Highlights

  • •Pump-action AR-15: the shooter cycles each round with a sliding forend, not gas
  • •Straight-wall .400 Legend on an 18-inch 1:16 heavy barrel
  • •Built on a standard AR-15 lower with AR grips, stocks, and triggers

More AR-15 guides & articles

Overview

The Bear Pump is Bear Creek Arsenal's first pump-action AR-15, and this is the .400 Legend rifle with the 18-inch barrel. The action cycles by hand: pull the sliding forend rearward to extract and eject the spent case, push it forward to chamber the next round. The lower is a standard AR-15 lower with a mil-spec trigger, so AR grips and stocks carry over.

The barrel is an 18-inch heavy-profile 4150 chrome moly vanadium tube with a parkerized finish and a 1:16 twist, capped by a muzzle brake. A 15-inch M-LOK split rail surrounds the pump forend, and a full-length Picatinny top rail runs forward from the receiver for an optic. Bear Creek lists the rifle at 7.7 pounds with the bolt carrier group and charging system included and no magazine in the box.

.400 Legend is Winchester's straight-wall deer cartridge for the AR-15, so this is a hunting rifle for states and seasons built around straight-wall cartridges. Some states regulate AR-15 receivers or named models as well as semiautomatic actions, so check your state's law before buying.

Key Features

  • Manually operated pump action on an AR-15 lower
  • 18 inch heavy-profile 4150 CMV barrel, parkerized, 1:16 twist
  • 15 inch M-LOK split rail around the pump forend
  • Full-length Picatinny top rail
  • Muzzle brake installed
  • Billet upper receiver
  • Bolt carrier group included; magazine not included

Capability Profile

0-10 Scale Across 8 Axes

Pros

  • +Manual action at a budget AR-15 price
  • +Standard AR-15 lower, grips, stocks, and mil-spec trigger
  • +Straight-wall .400 Legend for deer
  • +M-LOK rail and full-length top rail for optics and lights

Cons

  • −Brand-new design with no long-term reliability record yet
  • −No magazine included
  • −AR-15 lower can still draw receiver or named-model rules in some ban states
  • −Mil-spec trigger runs 7 to 8 pounds per Bear Creek

Detailed Specifications

caliber
.400 Legend
action
Pump action (manually operated)
Barrel Length
18 inches
barrelProfile
Heavy
Barrel Material
4150 chrome moly vanadium, parkerized
Twist Rate
1:16
handguard
15" M-LOK split rail
Muzzle Device
Muzzle brake
upperReceiver
Billet
weight
7.7 lb
magazine
Not included
sku
CRPA-8136-400LCHB18116PFL-15ASR

Recommended Optics

View all optics →

Similar Platforms

Compatible Components

+559 more

Compatibility Tags

family: modern-riflefamily: ar-patternuse: huntingtrigger: ar-fcginterface: picatinny-tophandguard: mlokbarrel: longcaliber: 400-legendmag-type: 400legendreceiver: side-chargereceiver-pattern: ar-15recoil-system: carbine

Configure This Platform

Add optics, lights, and accessories to build your perfect Bear Creek Arsenal Bear Pump (.400 Legend, 18").

Start Building