{"id":15869,"date":"2026-06-14T07:46:51","date_gmt":"2026-06-14T05:46:51","guid":{"rendered":"https:\/\/italytacticalshop.it\/product\/sa-m4-cqb-m-lok-rra-sa-p17-prime-aster-ii-etu-with-brushless-motor-chaos-grey\/"},"modified":"2026-06-14T07:46:51","modified_gmt":"2026-06-14T05:46:51","slug":"sa-m4-cqb-m-lok-rra-sa-p17-prime-aster-ii-etu-with-brushless-motor-chaos-grey","status":"publish","type":"product","link":"https:\/\/italytacticalshop.it\/en\/product\/sa-m4-cqb-m-lok-rra-sa-p17-prime-aster-ii-etu-with-brushless-motor-chaos-grey\/","title":{"rendered":"SA M4 CQB M-LOK (RRA SA-P17 Prime\u2122 Aster II ETU) with Brushless Motor – Chaos Grey"},"content":{"rendered":"

M4 CQB M-LOK (RRA SA-P17)<\/strong>\u00a0by\u00a0<\/span>Specna Arms<\/strong>\u00a0in\u00a0<\/span>Prime\u2122<\/strong>\u00a0series and\u00a0Chaos Grey<\/strong><\/strong><\/span>\u00a0finish.<\/span><\/p>\n

Receiver\u00a0with\u00a0Nano Coating<\/strong>\u00a0for scratch resistance.<\/p>\n

Reinforced\u00a0AETHER\u2122 gearbox<\/strong>\u00a0with\u00a0upgrade parts<\/strong>\u00a0and\u00a0Brushless motor.<\/strong><\/p>\n

Gate ASTER II Bluetooth\u00ae ETU<\/strong>\u00a0and\u00a0Quantum Trigger 2.<\/strong><\/p>\n

MAGNUS\u2122 hop-up chamber<\/strong>\u00a0with\u00a0TDC<\/strong>\u00a0adjustment,\u00a0Flat<\/strong>\u00a0bucking, and a\u00a06.02mm barrel.<\/strong><\/p>\n

3 springs included<\/strong>\u00a0(M90, M115, M135).<\/p>\n

M4 Rifle, History of the Real-World Predecessor<\/h5>\n

The\u00a0M4<\/strong>\u00a0is a compact\u00a0automatic rifle<\/strong>\u00a0developed in the United States based on the popular M16 assault rifle, with a focus on the need for a\u00a0lighter and shorter version<\/strong>\u00a0suitable for\u00a0urban combat<\/strong>.
In the 1960s, the\u00a0M16<\/strong>\u00a0rifle, developed by\u00a0Armalite<\/strong>\u00a0for the U.S. military, served as the base design for the future\u00a0M4<\/strong>\u00a0rifle.\u00a0In the 1980s, the first M4 prototypes appeared<\/strong>, featuring a shorter barrel and telescopic stock, improving the rifle’s maneuverability in confined spaces.
In the 1990s, the M4 was officially adopted by the U.S. armed forces as the standard assault carbine<\/strong>, replacing older models like the\u00a0M3<\/strong>\u00a0and\u00a0M9<\/strong>.
The\u00a0M4<\/strong>\u00a0rifle is characterized by its ability to fire\u00a0single shots and bursts<\/strong>. It quickly became popular among soldiers due to its\u00a0lightweight, compactness, and reliability<\/strong>. It was widely used in\u00a0conflicts in Iraq and Afghanistan<\/strong>\u00a0and became an\u00a0iconic weapon<\/strong>\u00a0of the modern U.S. military. Besides the standard model,\u00a0many M4 variants<\/strong>\u00a0exist, equipped with different accessories and upgrades to meet the specific needs of military units.
<\/strong>This\u00a0modernized<\/strong>\u00a0AEG<\/strong><\/a>\u00a0rifle, the\u00a0M4 CQB M-LOK (RRA SA-P17)<\/strong>, in the top-tier\u00a0Prime<\/strong>\u2122 series from\u00a0Specna Arms<\/strong>, boasts\u00a0excellent body craftsmanship<\/strong>\u00a0and is equipped with a\u00a0M-LOK handguard<\/strong>\u00a0that offers a\u00a0more secure mounting system on the weapon<\/strong>\u00a0while being\u00a0easier to grip<\/strong>.<\/p>\n

What Does the M4\u00a0CQB M-LOK (RRA SA-P17 Prime\u2122) from Specna Arms Offer?<\/h5>\n

Prime\u2122 is the top tier<\/strong>. It represents the\u00a0best, most refined, most upgraded, most perfect, and most reliable<\/strong>\u00a0that\u00a0Specna Arms<\/strong>\u00a0has to offer. In short,\u00a0Specna<\/strong>\u00a0decided to take the\u00a0perfectly fitted body from the Edge\/Edge 2.0 series<\/strong>\u00a0with\u00a0Nano Coating<\/strong>\u00a0surface treatment, which boasts\u00a0increased resistance to scratches<\/strong>\u00a0and damage, and\u00a0load it with high-performance upgrade parts. They started with the motor upgrade<\/strong>, specifically a\u00a0brushless<\/a><\/strong>\u00a0motor housed in a new\u00a0QD grip for quick access to the motor<\/strong>. The gun also features a completely redesigned\u00a0\u00c6THER\u00a0gearbox<\/a><\/strong>, capable of handling\u00a0AEG springs up to M140<\/strong>. Inside, you’ll find a\u00a0Bluetooth ASTER II ETU processor unit<\/strong>, CNC gears with a 16:1 ratio, CNC cylinder and piston heads with CNC nozzle,\u00a08mm ball bearings<\/strong>\u00a0on the piston and motor gears, and a\u00a0slide bearing on the sector gear<\/strong>. Accuracy is ensured by a\u00a06.02mm inner barrel<\/strong>, fitted with a\u00a0Helium Flat-Hop bucking<\/strong>\u00a0in the redesigned\u00a0MAGNUS\u2122 hop-up chamber with TDC pressure system<\/strong>.
The package includes\u00a03 different AEG spring strengths<\/strong>, so you can head into a\u00a0CQB arena with the M90 spring<\/strong>. In under a minute, thanks to the\u00a0ESA2 quick spring change<\/a><\/strong>\u00a0system, you can install the\u00a0M115 spring<\/strong>\u00a0for standard skirmishes or the\u00a0strongest M135 spring<\/strong>\u00a0in the package to turn your gun into a precise\u00a0DMR with excellent range<\/strong>.
If you’re looking for a\u00a0versatile airsoft gun made from the best components<\/strong>\u00a0that\u00a0requires no additional investment<\/strong>, then the Prime\u2122 series is the right choice.\u00a0From a fast CQB drill to a precise\u00a0DMR rifle<\/a>\u00a0firing single shots<\/strong>, that’s the magic of Prime\u2122. The package includes two S-Mag mid-cap magazines for 125 BBs and a speed loader for easy magazine filling.
If you’d like to\u00a0learn more about the Prime\u2122 series configuration<\/strong>, we’ve prepared a detailed list of all the important aspects for you.<\/p>\n

\"Specna<\/p>\n

Gate ASTER II Bluetooth\u00ae Processor Unit<\/h5>\n

This unit ensures safe switching and protects the internal parts, improves trigger response, extends battery life, increases the gun’s rate of fire, and allows the safe use of\u00a0Li-Pol batteries<\/a>\u00a07.4V and 11.1V<\/strong>.\u00a0The battery connector is T-Dean<\/strong>\u00a0with output to the\u00a0stock tube<\/strong>.<\/p>\n

ASTER II unit features:
<\/strong><\/p>\n