Bolster Tuned KRYTAC Trident MK3 SPR-M 'SIEKIERA' AEG

Code: BA-SIEKIERA

£689.99

Quantity

ASTER II Bluetooth® ETU
Warhead 27K Brushless Motor
Fully upgraded & hand-tuned to perfection

If you need an upgraded AEG which hits out hard to incredible range, this will impress you! The Bolster Tuned KRYTAC Trident MK3 SPR-M 'SIEKIERA' AEG is fully upgraded and hand-tuned by our expert technicians at Bolster Armouries, the perfect marriage of premium externals with top-tier performance.

Named for the Polish word for "Axe", the SIEKIERA (pronounced Shah-key-rah) is an asset to any outdoor playstyle, with its 16-inch barrel and 13-inch M-LOK handguard, providing plenty of accessory real estate so you can gear up for the mission ahead.

Inside, the team fitted its own Gate X Bolster Armouries ASTER II Bluetooth® ETU with the Custom Purple Trigger. This moves the base SPR-M into the space age, with Bluetooth connectivity, programmable fire modes and much, much more. The Purple CNC Quantum trigger is only available in Bolster builds, a subtle hint that this is not your usual KRYTAC.

Providing the intense torque and speed needed for a premium build, the Warhead Industries 27K Base Brushless Motor is paired with the Specna Arms Oblivion 16:1 Gears, boosting rate of fire to an impressive 25 RPS with practically no heat buildup and minimum friction. The stock piston was also swapped out for a CYMA Polymer Piston with Steel Tooth Rack to ensure this build is as durable as it is potent!

The Gate POWER CNC Aluminium Piston Head paired with a Bolster Armouries Piston Head O-ring and FPS Softair Type E Cylinder enhances consistency for an accuracy edge, and EZO 8mm Bearings provide a smooth gearbox report and top-notch reliability. Also inside are a plethora of Bolster's own tuning parts, from its M105 spring to an uprated 200% Tappet Plate Spring and the HOP-up to Barrel O-ring set.

The resulting SIEKIERA build reaches out to 60 meters with ease, boasting an intense 25 rounds per second firing rate and a rapid trigger response. If you're a woodland warrior seeking a primary which will outrange the rest, the Bolster Tuned KRYTAC Trident MK3 SPR-M 'SIEKIERA' AEG is the right tool for the job!

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

1-2 Working Day Dispatch UK mainland

£9.95

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

Learn about the original KRYTAC Trident MK3 SPR-M AEG

Pre-installed Upgrades

Gate X Bolster Armouries ASTER II Bluetooth® ETU with Purple Trigger:
- Programmable fire modes through the GCS app
- Enhances trigger response and boosts RoF
- Custom Purple Trigger is only available in Bolster Armouries builds
Warhead Industries 27K Base Brushless Motor:
- Boosts speed and torque
- Reduces heat build-up and friction
- Sounds smoother than a standard motor
Specna Arms Oblivion 16:1 CNC Steel Gear Set:
- Boosts rate of fire
- Made from robust CNC steel
Gate POWER CNC Aluminium Hybrid Piston Head:
- Improves air seal
- Corrects angle of engagement (AOE)
FPS Softair Stainless Steel Type D Cylinder:
- Matches air volume to inner barrel length
- Low-friction inner surface improves efficiency
CYMA Polymer Piston with Steel Tooth Rack:
- Stronger tooth rack than the standard piston

Bolster Armouries Premium Tuning Parts

EZO Bearings - Reduces friction & improves reliability
M105 Premium AEG Spring - Gets the build shooting right on the limit
Piston Head O-ring - Reduces FPS fluctuation for tighter groupings
200% Tappet Plate Spring - Ensures feeding is reliable at high rates of fire
HOP-up to Barrel O-ring Set - Ensures a tight fit between the HOP-up and gearbox

Performance - What to expect

Velocity (FPS): 340 FPS +/- 5% [using 0.20g BBs]

Rate of Fire (RoF): 25 RPS [using 11.1V 25C 1500mAh LiPo]

Maximum Range: 50-60 Meters [using 0.28g-0.32g BBs]

Muzzle Energy: Maximum 1.1 Joules

Recommended Accessories

Battery: 11.1V 25C 1500mAh LiPo Battery

Mags: PTS EPM Gen.2 150rnd Mid-cap Magazine

Optic: Vector Optics Maverick 1x22 Gen II Red Dot Sight

Foregrip: Element Stubby Foregrip for M-LOK

Package Includes

Bolster Tuned KRYTAC Trident MK3 SPR-M 'SIEKIERA' AEG
- 150rnd Medium Capacity Magazine
- Flip-up iron sights
- Bolster Armouries PVC Patch

Specification

Battery Included	No

General

Platform Type	Assault Rifle
Over 18	Yes
Defence / UKARA Required	Yes, No,
Prebuilt	Yes
Included Items	Magazine
Skill Level	Regular Player
Warnings	Li-Po Li-Po - Never Leave Charging Unattended Li-Po - Only Use Approved Chargers Li-Po - Charge in a Fire Safe Area

Testing

FPS, using 0.20g BBs	Approx.340fps ± 10%, using 0.20g BBs
Testing Notes	Tested using 0.20g Delta Armory EAGLE BBs

Weight and Dimension

Weight (KG)	Approx.3.3KG
Length	84cm
Length (Extended)	92cm

Construction

Primary Colour	Black
Secondary Colour	Purple
Construction	CNC Aluminium handguard. Alloy outer barrel, receiver, buffer tube and trim. High density polymer pistol grip and stock. Steel sling plate, flash hider & QD cups

Weapon Specific

Powered By	Electric
Platform	M4 / AR-15 / M16
Magazine Compatibility	M4/AR-15 AEG Magazines
Fire modes	Safe Semi Automatic Full Automatic Programmable
Safety Features	Trigger Disconnect
Shooter Configuration	Ambidextrous
Platform Configuration	Standard
Platform Scale	1:1
Suggested BB Weight	0.25g

Hop-Up

HOP-Up Adjuster Type	Rotary
HOP-Up Adjustment Location	Inside the ejection port, accessible with the charging handle pulled and the mock bolt locked back.

Furniture

Furniture	Railed Handguard Railed Receiver Ambidextrous Magazine Release Ambidextrous Fire Selector Ergonomic Pistol Grip AR Buffer Tube Sliding Stock Flip-Up Ironsights Flash Hider QD Sling Point Ambidextrous Sling Plate Extended Mag Release Enlarged Trigger Guard Extended Charging Handle Flat trigger M-LOK Handguard Rubber butt plate
Rail System	20mm RIS / RAS, 20mm Railed Receiver, M-LOK,
Stock Type	Sliding, Multi-Position,
Stock Positions	6
Sight Type	Aperture Iron Sight
Sling Options	Buffer Plate, Stock, QD, Loop,

Barrel

Outer Barrel Length (in)	16''
Outer Barrel Thread Type	Male
Outer Barrel Thread Direction	CCW (Counter Clockwise)
Outer Barrel Thread Size	14mm
Inner Barrel Diameter	6.03mm
Inner Barrel Length	410mm

Magazine Specific

Magazine Type	AEG, Medium Capacity,
Magazine BB Capacity	Approx.150Rounds

Electric Gun Specific Information

Gearbox

Gearbox Version	V2Gearbox
Gearbox Wiring	Rear Wired
Gearbox Quick Change Spring	Yes
Gearbox Electronic Trigger	Yes

Motor

Motor Type	Warhead Industries Base 27K Brushless Motor

Battery Specific

Battery Voltage	11.1V
Battery Type	Li-Po
Battery Connector	Deans
Suggested Battery Configuration	Stick configuration

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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