Search  for anything...

Spektrum AR631 DSMX 6-Channel AS3X & Safe Receiver, SPMAR631

Based on 93 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$69.98
Save $35.01 was $104.99

Buy Now, Pay Later


As low as $11.66 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Unavailable
Fulfilled by Atlanta Hobby

Available payment plans shown during checkout

At a glance

Condition
New
Model
SPMAR631
Dimensions
8 x 4 x 0.9 in
Weight
0.23 lb
Color
Black
Material
Plastic
Age Range Description
Kid
In the box
AR631 DSMX 6-Channel AS3X & SAFE Receiver

Features 5

  • Extra-long 230mm Antenna for more versatile installation options
  • Built in AS3X Stabilization System with SAFE flight envelope protection
  • AS3X and SAFE set up through forward programming directly from your Spektrum transmitter
  • Ready to use with Spektrum Smart ESC for one-wire telemetry data without the need of modules, links and wires

Description

Introduction: The Spektrum AR631 AS3X Telemetry Receiver is a DSM2 and DSMX capable receiver. Its compact footprint is designed to fit in a wide range of aircraft models including park flyers and larger sport models. The AR631 is a full range 6-channel receiver with built in AS3X and SAFE stabilization, which counters the effects of wind, turbulence and torque using 3-axis MEMS gyro and exclusive flight control software tuned by expert RC pilots. There is no delay in control response or limits on control throws. You'll simply feel like you're flying an expertly tuned model that does exactly what you want. Features: 230mm Antenna for more versatile installation options Built in AS3X Stabilization System with SAFE flight envelope protection AS3X and SAFE set up through forward programming directly from your Spektrum transmitter Ready to use with Spektrum Smart ESC for one-wire telemetry data without the need of modules, links and wires Streamlined, top-pin design in a lightweight hard- case Bind button allows for easy binding and eliminates the need for bind plug DSMX protocol receiver with DSM2 backwards compatibility Fly-by range telemetry support Standard servo connectors : Please note – Using this receiver in turbine powered aircraft models is not recommended Overview: The AR631 features fly-by range telemetry and a bind button that makes it easy to bind with no plugs necessary and offers both SmartSafe technology and Hold Last as well as preset failsafe types set through forward programming. A long 230mm 2.4gHz antenna, perfect for getting optimal reception when installed into tight spaces. The AR631 also features Smart Telemetry support

Specs 24

Brand Name Spektrum
Age Range Description Kid
Manufacturer Maximum Age (MONTHS) 1500.0
Manufacturer Minimum Age (MONTHS) 168.0
Set Name AR631 Receiver
Manufacturer Spektrum
UPC 605482762578
Manufacturer Part Number SPMAR631

Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Happy with this Spectrum AR631+ Receiver order
I realize after my order was shipped that I might have ordered the outdated model of this Spektrum receiver (AR631 / SPMA361) by mistake. I was pleasantly surprised that I was sent current model of this Spectrum receiver (AR631+ / SPM-1031) from Atlanta Hobby. The listing on Amazon's website shows the outdated model designation for this receiver and needs to be updated. I am completely satisfied with the receiver I was sent but others may be confused about which model receiver is being sold by this listing. Also, my order was processed, promptly shipped and arrived 4 days ahead of schedule! ... show more
Reviewed in the United States on March 30, 2026 by Amazon Customer

Best Reciver
Got this for an Astro Bipe that I got, wanted to have the safe mode untill I was sure I (Nooby) could handle it. Had to take extra precautions to make sure it was secure and level but work great
Reviewed in the United States on August 23, 2024 by Kra Z Bill

perfect replacement
Original part was bad from the factory. Had to buy replacement witch fit and works perfectly.
Reviewed in the United States on December 21, 2023 by Madeline V. Mitcheli

Great receiver, delivered quickly
Ordered on Friday, arrived on Monday. Can't ask for more than that.
Reviewed in the United States on September 16, 2024 by Kindle Customer

Great Product
A little on the pricy side but definitely has great features. Easy to program SAFE capability when using a transmitter with Forward Programming.
Reviewed in the United States on February 28, 2024 by Rich B.

A great receiver
Does exactly what it’s supposed to do
Reviewed in the United States on May 29, 2024 by Tony

Great operation
Love it
Reviewed in the United States on October 4, 2023 by Tom Haake

I was sold a used receiver!!!
I purchased this receiver a few weeks back. I didn't notice upon receiving this item that the package was opened. When I was about to install it into my plane, I noticed that there was glue residue on the bottom-side of the receiver. I though that i was a imperfection from the manufacturing process. I proceeded with the install and when it came down to programming the receiver, there was already programmed settings that were not factory default. I needed to perform a factory reset in order to program the receiver for my plane. I was ultimately able to program it without issue. It appears to operating properly. I am disappointed that I was sold a used item that could have potentially been involved in a crash. ... show more
Reviewed in the United States on March 15, 2024 by David Arroyo
Checking for inventory...