Double Bell MK12 MOD1 SPR

Code: …

£159.99

Quantity

Quick Change Spring
Ideal DMR Project Base
Steel / Aluminium / Polymer

The Double Bell MK12 MOD1 SPR is a 'Special Purpose Rifle', based on the AR Platform and constructed from a mix of Steel, Aluminium and Polymer. This Airsoft Electric Gun is built upon a Version 2 Gearbox that features a Quick Release Spring, allowing you to change the Main Spring without having to fully disassemble the Gearbox. This is an ideal choice for those looking for a base platform for a DMR project, or for someone looking to do a modern-day American Forces loadout.

Full description

Delivery & Returns

If you have items in your basket from our European Warehouse, the minimum order value is £25. This is to cover EU shipping costs. The minimum order value includes the value of any items from our UK Warehouse.

Delivery & Postage

Here at Patrol Base, we send all our packages from our Warehouse based in the UK with the exception of European Warehouse Items. All of our parcels are sent with specially picked couriers to ensure your parcels get to you on time and in one piece.

For more information please check out our Delivery Information Page.

Estimates

Below are some rough postage prices for orders. Please note these are subject to change and are only a rough guide. For a more accurate postage estimate please use the Postage Calculator at the basket.

UK Standard

£6.95

From

UK 24hr Dispatch

£8.95

From

Highlands / Islands

£24.99*

From

* Please note that Scottish Highlands, and Islands postage prices can vary wildly. Please refer to the Postage Calculator at the basket for the lowest possible price.

Returns

We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.

You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.

For more information on returning products, and how to do it please visit our Returns Policy Page.

Description

The MK12 MOD1 SPR is an Airsoft Electric Gun made by Double Bell, with a realistic external construction of Steel, Aluminium and Polymer and decent attention paid to the Version 2 Gearbox inside. The Pistol Grip and Stock are made from Polymer, whilst the Handguard, Outer Barrel Assembly and Receiver are made from Alloy. The Magazine, Flash Hider, Magazine Catch and other trim components of the Rifle (screws/pins) are made from Steel, to ensure long life performance.

Externally, this Rifle has all the hallmark features of a 'Special Purpose Rifle', starting with an SPR-style Flash Hider at the end of the Outer Barrel. A 20mm Railed Handguard can be used for your accessories, from Bipod and Grips to Lasers and Grenade Launchers, but comes with a set of 20mm Rail Covers to make it more comfortable to hold out of the box. The Receiver also features a 20mm Rail which can be used for the installation of Sights and Scopes, however the Gun is supplied with a set of Flip Up Ironsights that can be folded down and out of your way when not in use. The Pistol Grip is an ergonomic design that is shaped to the contours of your hand, for all-day comfort when playing. At the rear of the Gun is an M16 Solid Stock which is also where your Battery should be housed. This Stock provides a huge amount of space for all manner of Batteries, from a 7.4v LiPo to 9.6v NiMH Block Batteries.

To access the Battery Compartment, simply open the 'door' on the back of the Stock by pulling down on the release tab. This window gives access to the Stock and provides loads of room for most sizes of Battery. The MK12 MOD1 SPR also features an Adjustable HOP Unit that is controlled by a Gear Wheel behind the Mock Bolt. Just pull back on the Charging Handle to reveal the Gear Wheel behind the Dust Cover / Mock Bolt. A Rear Sling Loop can be found on the Stock, which could be used for a Sling Setup, but we would advise sourcing a 20mm Sling Loop for the Handguard, so that you can make use of a Two Point Setup rather than a Single Point at the rear.

Included in the box is the Airsoft Gun itself, and a 150rnd High Cap Magazine, which is filled by pouring BBs through the top Fill Window, and wound at the base of the Magazine to feed BBs into the Gun. If you're looking at creating a DMR or other Custom Rifle based on the equipment of the US Armed Forces pre-2017, then the Double Bell MK12 MOD1 SPR is ideal for all kinds of modern-day loadouts.

Features

Airsoft Electric Gun
Based on the AR/M16 Platform
'Special Purpose Rifle'
Ideal Base Platform for DMR Project
Quick Change Spring System
Steel / Aluminium / Polymer
SPR Style Steel Flash Hider
20mm Railed Handguard
20mm Rail Covers Included
Flip Up Ironsights Included
150rnd High Cap Magazine
Gear-Type Adjustable HOP Unit
Functional Mock Charging Handle
Ergonomic Pistol Grip Design
M16 Style Solid/Fixed Stock
Very Large Battery Compartment
Rear Wired / Version 2 Gearbox
Easy Access Rear Battery Door
470mm Inner Barrel
8mm Steel Bearings
Aluminium Sealed Nozzle
Total Weight: 3.14kg
Total Length: 96.5cm

Package Includes

Double Bell MK12 MOD1 SPR
150rnd High Cap Magazine

Specification

General

Weapon Type	Assault Rifle, DMR Type,
Over 18	Yes
Defence / UKARA Required	Yes, No,
FPS, using 0.20g BB	Approx.330fps ± 10%, using 0.20g BB
Site Legal, using 0.20g BB	Yes
Pre-Built	Yes
Included Items	Magazine
User Skill Level	Beginner Player, Regular Player,
Warnings	Li-Po - Never Leave Charging Unattended Li-Po - Only Use Approved Chargers Li-Po - Charge in a Fire Safe Area

Weight and Dimension

Weight (KG)	Approx. 3.14kg
Length (Collapsed)	96.5cm
Length (Extended)	96.5cm

Construction

Primary Colour	Black
Construction	Alloy outer barrel assembly, handguard and receiver. Polymer pistol grip and stock. Steel magazine and trim.
External Construction	Polymer Alloy Aluminium Steel
Internal Construction	Polymer Alloy Aluminium Steel

Weapon Specific

Powered By	Electric
Blowback	None
Weapon Platform	M4 / AR-15 / M16, AR,
Magazine Style	M4 / AR Platform, STANAG,
Fire Selector	Safe Semi Automatic Full Automatic
Safety Features	Trigger Lock
Shooter Configuration	Right Handed
Weapon Configuration	Standard
Weapon Scale	1:1
Suggested BB Weight	0.25g

Hop-Up

Hop-Up Unit	Yes
Hop-Up Adjuster	Gear
Hop-Up Location	Behind mock bolt when charging handle to the rear

Furniture

Furniture	Railed Handguard Railed Receiver Ergonomic Pistol Grip Fixed Stock Flip-Up Ironsights
Rail System	20mm RIS / RAS
Stock Setting	Fixed
Sight Type	Iron Sights
Sling Options	Loop

Barrel

Inner Barrel Length	470mm

Magazine Specific

Magazine Type	AEG, High Capacity,
Magazine BB Capacity	Approx. 150 Rounds
Magazine BB Fill Method	Fill Window
Magazine BB Fill Location	Top

Electric Gun Specific Information

Gearbox

Gearbox Version	V2 Gearbox
Gearbox Wiring	Rear Wired
Gearbox Quick Change Spring	Yes

Battery Specific

Battery Connector	Mini Tamiya

Product Testing Data

Test Description	330FPS
Tested Using	N/A
Test Date	N/A

Detailed Power Tests

FPS

FPS, using 0.20g BB	Approx. 330fps, using 0.20g BB

Size guide

Joule Charts

Special Instructions

These table can be used as a reference to see if the BB weight you are using will be over acceptable Joulage limits at some Airsoft Sites in the UK. To check if the weight can be used chrono your weapon using the BB you intend to use, and then compare it to the chart.

FPS, Power and Joule Limits can vary from site to site, so please get in touch with where you're going to play with in advance to avoid disappointment.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, with a 350fps limit for Automatic Replicas, 400fps for Semi-Automatic Replicas, and 500fps for Bolt Action Replicas.

Tap the tabs below to open the relevant chart for your replica.

This table should be used for reference, and cannot be used to check one weight against another, as the weight of the BB affects the power.

In order to check if the BB can be used with your replica chronograph using the weight you wish to use and then compare it against the table.

Every time you change weights you will need to re-chrono and check against the table. This is not a conversion chart between weights.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, and is the equivalent of 350fps, using 0.20g BB resulting in an upper limit of 1.14j.

Velocity	BB Weight (Grams)
FPS	0.20	0.25	0.28	0.30	0.32	0.36	0.40	0.43	0.45	0.50
250	0.58	0.73	0.81	0.87	0.93	1.05	1.16	1.25	1.31	1.45
260	0.63	0.79	0.88	0.94	1.00	1.13	1.26	1.35	1.41	1.57
270	0.68	0.85	0.95	1.02	1.08	1.22	1.35	1.46	1.52	1.69
280	0.73	0.91	1.02	1.09	1.17	1.31	1.46	1.57	1.64	1.82
290	0.78	0.98	1.09	1.17	1.25	1.41	1.56	1.68	1.76	1.95
300	0.84	1.05	1.17	1.25	1.34	1.51	1.67	1.80	1.88	2.09
310	0.89	1.12	1.25	1.34	1.43	1.61	1.79	1.92	2.01	2.23
320	0.95	1.19	1.33	1.43	1.52	1.71	1.90	2.05	2.14	2.38
325	0.98	1.23	1.37	1.47	1.57	1.77	1.96	2.11	2.21	2.45
328	1.00	1.25	1.40	1.50	1.60	1.80	2.00	2.15	2.25	2.50
330	1.01	1.26	1.42	1.52	1.62	1.82	2.02	2.18	2.28	2.53
335	1.04	1.30	1.46	1.56	1.67	1.88	2.09	2.24	2.35	2.61
340	1.07	1.34	1.50	1.61	1.72	1.93	2.15	2.31	2.42	2.68
345	1.11	1.38	1.55	1.66	1.77	1.99	2.21	2.38	2.49	2.76
350	1.14	1.42	1.59	1.71	1.82	2.05	2.28	2.45	2.56	2.85
355	1.17	1.46	1.64	1.76	1.87	2.11	2.34	2.52	2.63	2.93
360	1.20	1.51	1.69	1.81	1.93	2.17	2.41	2.59	2.71	3.01

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 400fps, using 0.20g BB resulting in an upper limit of 1.49j.

Velocity	BB Weight (Grams)
FPS	0.20	0.25	0.28	0.30	0.32	0.36	0.40	0.43	0.45	0.50
250	0.58	0.73	0.81	0.87	0.93	1.05	1.16	1.25	1.31	1.45
260	0.63	0.79	0.88	0.94	1.00	1.13	1.26	1.35	1.41	1.57
270	0.68	0.85	0.95	1.02	1.08	1.22	1.35	1.46	1.52	1.69
280	0.73	0.91	1.02	1.09	1.17	1.31	1.46	1.57	1.64	1.82
290	0.78	0.98	1.09	1.17	1.25	1.41	1.56	1.68	1.76	1.95
300	0.84	1.05	1.17	1.25	1.34	1.51	1.67	1.80	1.88	2.09
310	0.89	1.12	1.25	1.34	1.43	1.61	1.79	1.92	2.01	2.23
320	0.95	1.19	1.33	1.43	1.52	1.71	1.90	2.05	2.14	2.38
330	1.01	1.26	1.42	1.52	1.62	1.82	2.02	2.18	2.28	2.53
340	1.07	1.34	1.50	1.61	1.72	1.93	2.15	2.31	2.42	2.68
350	1.14	1.42	1.59	1.71	1.82	2.05	2.28	2.45	2.56	2.85
360	1.20	1.51	1.69	1.81	1.93	2.17	2.41	2.59	2.71	3.01
370	1.27	1.59	1.78	1.91	2.03	2.29	2.54	2.73	2.86	3.18
380	1.34	1.68	1.88	2.01	2.15	2.41	2.68	2.88	3.02	3.35
390	1.41	1.77	1.98	2.12	2.26	2.54	2.83	3.04	3.18	3.53
400	1.49	1.86	2.08	2.23	2.38	2.68	2.97	3.20	3.34	3.72
410	1.56	1.95	2.19	2.34	2.50	2.81	3.12	3.36	3.51	3.90

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 500fps, using 0.20g BB resulting in an upper limit of 2.32j.

Velocity	BB Weight (Grams)
FPS	0.20	0.25	0.28	0.30	0.32	0.36	0.40	0.43	0.45	0.50
250	0.58	0.73	0.81	0.87	0.93	1.05	1.16	1.25	1.31	1.45
260	0.63	0.79	0.88	0.94	1.00	1.13	1.26	1.35	1.41	1.57
270	0.68	0.85	0.95	1.02	1.08	1.22	1.35	1.46	1.52	1.69
280	0.73	0.91	1.02	1.09	1.17	1.31	1.46	1.57	1.64	1.82
290	0.78	0.98	1.09	1.17	1.25	1.41	1.56	1.68	1.76	1.95
300	0.84	1.05	1.17	1.25	1.34	1.51	1.67	1.80	1.88	2.09
310	0.89	1.12	1.25	1.34	1.43	1.61	1.79	1.92	2.01	2.23
320	0.95	1.19	1.33	1.43	1.52	1.71	1.90	2.05	2.14	2.38
330	1.01	1.26	1.42	1.52	1.62	1.82	2.02	2.18	2.28	2.53
340	1.07	1.34	1.50	1.61	1.72	1.93	2.15	2.31	2.42	2.68
350	1.14	1.42	1.59	1.71	1.82	2.05	2.28	2.45	2.56	2.85
360	1.20	1.51	1.69	1.81	1.93	2.17	2.41	2.59	2.71	3.01
370	1.27	1.59	1.78	1.91	2.03	2.29	2.54	2.73	2.86	3.18
380	1.34	1.68	1.88	2.01	2.15	2.41	2.68	2.88	3.02	3.35
390	1.41	1.77	1.98	2.12	2.26	2.54	2.83	3.04	3.18	3.53
400	1.49	1.86	2.08	2.23	2.38	2.68	2.97	3.20	3.34	3.72
410	1.56	1.95	2.19	2.34	2.50	2.81	3.12	3.36	3.51	3.90
420	1.64	2.05	2.29	2.46	2.62	2.95	3.28	3.52	3.69	4.10
430	1.72	2.15	2.40	2.58	2.75	3.09	3.44	3.69	3.86	4.29
440	1.80	2.25	2.52	2.70	2.88	3.24	3.60	3.87	4.05	4.50
450	1.88	2.35	2.63	2.82	3.01	3.39	3.76	4.04	4.23	4.70
460	1.97	2.46	2.75	2.95	3.15	3.54	3.93	4.23	4.42	4.91
470	2.05	2.57	2.87	3.08	3.28	3.69	4.10	4.41	4.62	5.13
480	2.14	2.68	3.00	3.21	3.42	3.85	4.28	4.60	4.82	5.35
490	2.23	2.79	3.12	3.35	3.57	4.02	4.46	4.80	5.02	5.58
500	2.32	2.90	3.25	3.48	3.72	4.18	4.65	4.99	5.23	5.81
510	2.42	3.02	3.38	3.62	3.87	4.35	4.83	5.20	5.44	6.04

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