CYMA CM.350LM Tri-Shot Pump Action Shotgun

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£109.99

Quantity

Full metal construction
Tri-shot design
Full-length M870 replica

The CYMA CM.350LM M870 is a spring-powered airsoft shotgun inspired by the legendary Remington M870, a design synonymous with close-quarters dominance. Built in a full stock configuration, it delivers a menacing on-field presence alongside dependable performance. Its satisfyingly tactile pump action makes it a perfect choice for CQB players who favour a hands-on, aggressive playstyle.

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 3-5 day Standard

£6.95

From

Dispatched with 24hr UK mainland

£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

At the front end, the CM.350LM is equipped with a deeply grooved pump handle, ensuring a secure grip even when wearing gloves or operating in damp conditions. The pump action itself feels solid and purposeful, producing a satisfyingly realistic sound as it is cycled fully rearwards and forward to chamber each shot. This tactile action is central to the shotgun’s operation and greatly enhances immersion during gameplay.

Inside, the M870 features a triple inner barrel system, firing three BBs with every pump. Rather than relying on a single barrel, each shot is delivered through three separate barrels to produce a natural spread pattern. This dramatically improves hit probability at close range, making the CM.350LM highly effective for room clearing and fast-paced CQB encounters where quick reactions matter.

The shotgun’s construction prioritises durability without excessive weight. The receiver, pump, grip and stock are manufactured from robust, lightweight polymer, while alloy is used for the barrels and trigger components to reinforce high-stress areas. A chrome-effect mock bolt adds a subtle but authentic visual touch, further enhancing the replica’s realism.

At the rear, the full-size fixed stock provides greater stability and control than pistol grip alternatives, helping players maintain balance and track targets during aggressive pushes. Integrated front and rear sling loops allow for a variety of sling configurations, whether for patrol-style carry or rapid transitions.

Shell-style magazines are loaded via the underside of the receiver, maintaining the authentic shotgun feel. A spring-loaded loading gate ensures shells remain secure during play. A standout feature is the removable loading tube, which can be unscrewed to access internal storage for up to three spare shells, ideal for minimalist loadouts or players running without dedicated shell pouches.

Thanks to its fixed hop-up, simple spring-powered operation and rugged design, the CYMA CM.350LM M870 is straightforward, reliable and budget-friendly. It’s a strong option for newcomers wanting to experience CQB shotgun play, as well as seasoned skirmishers looking for a dependable secondary to carry in a shotgun scabbard when their primary fails.

Features

Based on the iconic Remington M870 shotgun
Spring-powered airsoft shotgun
Realistic pump-action cocking mechanism
Triple inner barrel tri-shot system
Fires three BBs per trigger pull
Full-size fixed stock for improved control
Grooved pump handle for enhanced grip
Tough polymer construction with alloy internals
Chrome mock bolt for added realism
Uses realistic shell-style magazines
Bottom-loading shell system
Spring-loaded magazine door
Loading tube unscrews to store up to three spare shells
Front and rear sling loop points
Fixed hop-up unit
Trigger lock safety
Ideal for CQB skirmishing and room clearing

Package Includes

CYMA CM.350LM Tri-Shot Pump Action Shotgun
3x 30rnd Shotgun Shells

Specification

General

Platform Type	Shotgun
Over 18	Yes
Defence / UKARA Required	Yes, No,
Prebuilt	Yes
Included Items	3 x Shotgun Shells
Skill Level	Beginner Player

Testing

FPS, using 0.20g BBs	Approx.300fps ± 10%, using 0.20g BBs

Weight and Dimension

Weight (KG)	Approx.2.2KG
Length	105cm

Construction

Primary Colour	Black

Weapon Specific

Powered By	Spring
Platform	Shotgun, Tri-shot shotguns,
Fire modes	Safe Pump Action
Safety Features	Trigger Lock
Shooter Configuration	Right Handed
Platform Configuration	Pump Action
Platform Scale	1:1
Suggested BB Weight	0.25g

Hop-Up

HOP-Up Adjuster Type	Fixed

Furniture

Furniture	Ergonomic Pistol Grip Sliding Stock sling points front and rear Ridged Pump
Stock Type	Fixed
Sight Type	None
Sling Options	Stock, Handguard, Loop,

Barrel

Inner Barrel Diameter	6.08mm
Inner Barrel Length	295mm

Magazine Specific

Magazine Type	Shotgun Shell
Magazine BB Capacity	Approx. 30 Rounds

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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