The Phaser IId is the latest hand Phaser to come out of AFY's R&D. This weapon has 20 settings rather than the standard 16 of the Type IIc issued to most of Starfleet. The Type IId, due to this extra power availability, is the standard sidearm for the Marines. This weapon has an additional Sarium Krellide power cell embedded into the center section, this gives the Phaser the ability to reach the extra 4 power settings and longer power cell life. As with any sidearm, the main three type of beam are Stun, Heat, and Disruption. The added 4 settings allow for greater precision when using these functions and slightly further range.
The Marine phaser rifle is a much larger, more sophisticated weapon than Type-III and Type-IVa Phaser rifles Starfleet Security Officers are issued. It is capable of firing phaser energy in pulses and are variable power levels. It uses an advanced computer control system to allow for modulation characteristics to be modified faster than in previous phaser rifles, important when dealing with the Borg. The Marine Phaser rifle also includes a much more effective and elaborate targeting system and a larger energy reserve. The Rifle is equipped with a
gyro-stabilized targeting unit. This targeting unit incorporates sensors capable of detecting and tracking life forms and can perform the equivalent of
tricorder short range biological scans. Images of the targeted life forms would be displayed on the units display screen.

The Marine photon rifle is a heavy fire support weapon and much more sophisticated than Type-IIa Photon rifle Starfleet Security Officers are issued. It is capable of firing photon rounds known as a photonic pulse (essentially micro torpedoes) at variable power levels. These are highly charged and focussed. They can pierce most known armor and shielding. This weapon is very successful against the Borg as no one Photonic pulse has the exact same modulation, and therefore the Borg find it very hard to adapt to the 'base frequency'. It uses an advanced computer control system to allow for manual modulation, important if the Borg do manage to adapt. The Marine Photon rifle also includes a effective and elaborate targeting system, similar to the one used on the Type IVb Phaser rifle, except this one can target objects further away. It carries a reserve of 20 shots. The Rifle is equipped with a gyro-stabilized targeting unit. This targeting unit incorporates sensors capable of detecting and tracking life forms and other programmed targets. Images of the targets would be displayed on the units display screen. The photonic pulse shots this weapon fires are similar to photon grenades, one of the most devastating personnel weapons developed by the Federation. This weapon's use is strictly controlled and is usually limited to wartime. They are effectively a controlled version of phasers set on overload. The photonic pulse emits large bursts of rapid nadion particles which are found in phaser beams. This rifle has five different power settings and may be set to affect everything within a radius of between 3 and 10 meters from impact.
Star Fleet Marine Corps realizing the need, resolved to manufacture a lighter, more rapid firing version of the common phaser rifle. The result was the SSPW . The differences between it and its distant cousin the Type IV Phaser Rifle is that the SSPW is designed for rapid pulse Phaser fire. In order to accommodate its additional mechanisms, its height had to be expanded (although its width was unchanged). The SSPW uses high strength polymers in its construction in an attempt to cut down on weight yet still retain strength. Also on the top of every unit, there is a hard point for any sight deemed tactically necessary. Like its cousin, the Type IV Phaser Rifle, the SSPW has one grip forward of the butt, and a collapsible bipod near the muzzle. The is the new rapid firing capability. The SSPW utilizes not one, but five firing chambers with associated emitter crystals to avoid crystal
recovery/reload time when expended. The firing chambers are arranged internally in a "Gatling" arrangement around an elliptical axis. The unit also has two over/under tandem subspace transceiver assemblies to help with the increased firing load. In order to save weight and size, the power cell for the unit is not built very large to hold energy for tremendous intensive shots that can detonate solid material or vaporize living material. The danger of destroying a high value target or ricochets off shielded items is not a necessary risk.
The Phaser Sniper Weapon was developed using some of the data from the Compression rifle program. First of all, a new LiMg 502 crystal was synthesized that rectified energy bolts in a constant alternating subspace frequency. Though extremely expensive to synthesize, it has been produced in small amounts that can be mounted in phaser sniper rifles The weapon also incorporates a series of self adjusting graviton emitters that change their own frequency as well. Each of the emitters is set at a different frequency and contributes equally to the formation of a graviton shell. As each graviton frequency resonates around the rectified energy, this keeps the subspace vibration of normally ungravitated phaser blast from degrading, thus keeping its cohesion longer after release. Like the Compression Rifle, a buffer system is setup to force a charge buildup in the pre-fire chamber, resulting in a much more energetic discharge. The LiMg 502 crystal does not have the luminous properties of its cousin the fushigi-no-umi family. This gives the sniper superiority in terms of concealment. The approach vector of his blast will not be traceable except by highly sophisticated sensors designed to pick up fluctuations in temperature, atmospheric stimulation, and subspace distortion. In the field, the Mk IV Phaser Sniper Weapon is unmatched currently for its ability to give commanders a tactical option of concealed fire. Sights range anywhere from iron (non-magnification) to WSV (Wide Spectral Visual) to PEM (Passive Electromagnetic) sensors.
This formidle weapon is one of Starfleet's newest innovations. Designed towards the end of the Dominion War to assist in the numerous ground battles which it was clearly evident, would only become more frequent. As such the weapon design was taken by the Starfleet Marine Corps. and adopted with very minimal changes. The actual weapon consists of a large central barrel over one meter long with a shoulder mounting and a frontal grip in a similar style to a 20th century bazooka. The actual unit fires Isomagnetic charges which upon impact create a single magnetic blast which can remove the threat of a larger attacking force, weapon emplacements or airborne targets. The weapon has several major faults. As it is a large by starfleet standards, when fired it has a powerful recoil which could easily knock an unprepared man to the ground. Secondly it is not a quick weapon to aim or fire, which could leave the operator in serious danger of being picked out as a static and easy target.
When the Dominion threat became urgent in late 2370, Starfleet decided to issue its forces with a new class of heavy rifles to increase the firepower available to them. The Compression rifle concentrated on simplicity. The discharge crystal was doped with arsenic atoms and trisilinate molecules in order to restrict the phaser energy discharge. limiting or compressing the beam to a maximum of 200 picoseconds of firing. This would fire the entire energy discharge in a beam of only 6 centimeters length, greatly increasing the intensity of the energy and so enhancing the effect on the target.